My Windows Explorer is not find my newly saved files

Similar Questions

• Windows Explorer is not responding. you want to wait, close or restart the program

  Remember - this is a public forum so never post private information such as numbers of mail or telephone!

  Ideas:

  • You have problems with programs: WINDOS VISTA
  • Error messages: WINDOWS EXPLORER IS NOT ANSWER
  • Recent changes to your computer
  • What you have already tried to solve the problem

  Hello

  What antivirus/antispyware/security products do you have on the machine? Be one you have NEVER
  on this machine, including those you have uninstalled (they leave leftovers behind which can cause
  strange problems).

  ----------------------------------------------------

  Follow these steps:

  Start - type this in the search box-> find COMMAND at the top and RIGHT CLICK – RUN AS ADMIN

  Enter this at the command prompt - sfc/scannow

  How to analyze the log file entries that the Microsoft Windows Resource Checker (SFC.exe) program
  generates in Windows Vista cbs.log
  http://support.Microsoft.com/kb/928228

  Also run CheckDisk, so we cannot exclude as much as possible of the corruption.

  How to run the check disk at startup in Vista
  http://www.Vistax64.com/tutorials/67612-check-disk-Chkdsk.html

  ==========================================

  After the foregoing:

  How to troubleshoot a problem by performing a clean boot in Windows Vista
  http://support.Microsoft.com/kb/929135
  How to troubleshoot performance issues in Windows Vista
  http://support.Microsoft.com/kb/950685

  Optimize the performance of Microsoft Windows Vista
  http://support.Microsoft.com/kb/959062
  To see everything that is in charge of startup - wait a few minutes with nothing to do - then right-click
  Taskbar - the Task Manager process - take a look at stored by - Services - this is a quick way
  reference (if you have a small box at the bottom left - show for all users, then check that).

  How to check and change Vista startup programs
  http://www.Vistax64.com/tutorials/79612-startup-programs-enable-disable.html

  A quick check to see that load method 2 is - using MSCONFIG then put a list of
  those here.
  --------------------------------------------------------------------

  Tools that should help you:

  Process Explorer - free - find out which files, key of registry and other objects processes have opened.
  What DLLs they have loaded and more. This exceptionally effective utility will show you even who has
  each process.
  http://TechNet.Microsoft.com/en-us/Sysinternals/bb896653.aspx

  Autoruns - free - see what programs are configured to start automatically when you start your system
  and you log in. Autoruns also shows you the full list of registry and file locations where applications can
  Configure auto-start settings.
  http://TechNet.Microsoft.com/en-us/sysinternals/bb963902.aspx
  Process Monitor - Free - monitor the system files, registry, process, thread and DLL real-time activity.
  http://TechNet.Microsoft.com/en-us/Sysinternals/bb896645.aspx

  There are many excellent free tools from Sysinternals
  http://TechNet.Microsoft.com/en-us/Sysinternals/default.aspx

  -Free - WhatsInStartUP this utility displays the list of all applications that are loaded automatically
  When Windows starts. For each request, the following information is displayed: Type of startup (registry/Startup folder), Command - Line String, the product name, Version of the file, the name of the company;
  Location in the registry or the file system and more. It allows you to easily disable or remove unwanted
  a program that runs in your Windows startup.
  http://www.NirSoft.NET/utils/what_run_in_startup.html

  There are many excellent free tools to NirSoft
  http://www.NirSoft.NET/utils/index.html

  Window Watcher - free - do you know what is running on your computer? Maybe not. The window
  Watcher says it all, reporting of any window created by running programs, if the window
  is visible or not.
  http://www.KarenWare.com/PowerTools/ptwinwatch.asp

  Many excellent free tools and an excellent newsletter at Karenware
  http://www.KarenWare.com/

  ===========================================

  Vista and Windows 7 updated drivers love then here's how update the most important.

  This is my generic how updates of appropriate driver:

  This utility, it is easy see which versions are loaded:

  -Free - DriverView utility displays the list of all device drivers currently loaded on your system.
  For each driver in the list, additional useful information is displayed: load address of the driver,
  Description, version, product name, company that created the driver and more.
  http://www.NirSoft.NET/utils/DriverView.html

  For drivers, visit manufacturer of emergency system and of the manufacturer of the device that are the most common.
  Control Panel - device - Graphics Manager - note the brand and complete model
  your video card - double - tab of the driver - write version information. Now, click on update
  Driver (this can do nothing as MS is far behind the certification of drivers) - then right-click.
  Uninstall - REBOOT it will refresh the driver stack.

  Repeat this for network - card (NIC), Wifi network, sound, mouse, and keyboard if 3rd party
  with their own software and drivers and all other main drivers that you have.

  Now in the system manufacturer (Dell, HP, Toshiba as examples) site (in a restaurant), peripheral
  Site of the manufacturer (Realtek, Intel, Nvidia, ATI, for example) and get their latest versions. (Look for
  BIOS, Chipset and software updates on the site of the manufacturer of the system here.)

  Download - SAVE - go to where you put them - right click - RUN AD ADMIN - REBOOT after
  each installation.

  Always check in the Device Manager - drivers tab to be sure the version you actually install
  presents itself. This is because some restore drivers before the most recent is installed (sound card drivers
  in particular that) so to install a driver - reboot - check that it is installed and repeat as
  necessary.

  Repeat to the manufacturers - BTW in the DO NOT RUN THEIR SCANNER device - check
  manually by model.

  Look at the sites of the manufacturer for drivers - and the manufacturer of the device manually.
  http://pcsupport.about.com/od/driverssupport/HT/driverdlmfgr.htm

  How to install a device driver in Vista Device Manager
  http://www.Vistax64.com/tutorials/193584-Device-Manager-install-driver.html

  If you update the drivers manually, then it's a good idea to disable the facilities of driver under Windows
  Updates, that leaves about Windows updates but it will not install the drivers that will be generally
  older and cause problems. If updates offers a new driver and then HIDE it (right click on it), then
  get new manually if you wish.

  How to disable automatic driver Installation in Windows Vista - drivers
  http://www.AddictiveTips.com/Windows-Tips/how-to-disable-automatic-driver-installation-in-Windows-Vista/
  http://TechNet.Microsoft.com/en-us/library/cc730606 (WS.10) .aspx

  ===========================================

  Refer to these discussions because many more excellent advice however don't forget to check your antivirus
  programs, the main drivers and BIOS update and also solve the problems with the cleanboot method
  first.

  Problems with the overall speed of the system and performance
  http://support.Microsoft.com/GP/slow_windows_performance/en-us

  Performance and Maintenance Tips
  http://social.answers.Microsoft.com/forums/en-us/w7performance/thread/19e5d6c3-BF07-49ac-a2fa-6718c988f125

  Explorer Windows stopped working
  http://social.answers.Microsoft.com/forums/en-us/w7performance/thread/6ab02526-5071-4DCC-895F-d90202bad8b3

  Hope these helps.

  Rob Brown - MS MVP - Windows Desktop Experience: Bike - Mark Twain said it right.

• Windows search can not find my files

  Even if I indexed all folders on my computer Windows Search can not find something of my music, my pictures, and my videos folders. I checked if they are indexed and they are. I tried rebuilding the index, but it did not help. Does anyone know what may be the problem?

  Problem solved. One of my programs has changed the use of the search bar for "do not search" menu properties taskbar and start, I have no idea why.

  PROBLEM SOLVED

  I struggled with the same problem for a few hours. Finally, I discovered that:

  If you are looking for a word in a file name, then you must start the search string with an asterisk (wildcard character), in the opposite case, Windows will detect nothing. For example, if you are looking for "cyberdyne" in a file name, then you must look for the two "cyberdyne" and "* cyberdyne.

  If the word you are looking for is at the beginning of the name of the file, or if it is preceded by a dash or a dot, then Windows Explorer is the file without the asterisk.

• Windows Explorer does not work properly and hold all the time

  I have Windows 7 Professional as a platform. In the end, I find windows Explorer does not correctly and hold all the time. Pls advise on how to solve this problem. Note I am not a computer Savvy and I need a step by step approach.

  Thank you for your time and enjoy your time.

  .

  Hello

  Use the startup clean and other methods to try to determine the cause of and/or
  eliminate problems.

  ---------------------------------------------------------------

  References to Vista also apply to Windows 7.

  What antivirus/antispyware/security products do you have on the machine? Include
  everything you've ALWAYS had on this machine, including those you have uninstalled (they
  remains of leave behind which can cause strange problems).

  ----------------------------------------------------

  Follow these steps:

  Try these to erase corruption and missing/damaged file system repair or replacement.

  Start - type this in the search box-> find COMMAND at the top and RIGHT CLICK – RUN AS ADMIN

  Enter this at the command prompt - sfc/scannow

  How to fix the system files of Windows 7 with the System File Checker
  http://www.SevenForums.com/tutorials/1538-SFC-SCANNOW-Command-System-File-Checker.html

  How to analyze the log file entries that the Microsoft Windows Resource Checker
  (SFC.exe) program generates in Windows Vista cbs.log
  http://support.Microsoft.com/kb/928228

  Also run CheckDisk, so we cannot exclude as much as possible of the corruption.

  How to run check disk in Windows 7
  http://www.SevenForums.com/tutorials/433-disk-check.html

  ==========================================

  After the foregoing:

  How to troubleshoot a problem by performing a clean boot in Windows
  Vista or Windows 7
  http://support.Microsoft.com/kb/929135

  Use advanced tools to solve performance problems in Windows 7
  http://www.howtogeek.com/HOWTO/6152/use-advanced-tools-to-troubleshoot-performance-problems-in-Windows-7/

  Problems with the overall speed of the system and performance
  http://support.Microsoft.com/default.aspx/GP/slow_windows_performance?p=1

  How to troubleshoot performance issues in Windows Vista
  http://support.Microsoft.com/kb/950685

  Optimize the performance of Microsoft Windows Vista
  http://support.Microsoft.com/kb/959062
  To see everything that is in charge of startup - wait a few minutes without doing anything-
  then right click on taskbar - task manager - take a look at stored by -
  Process - Services - this is a quick reference (if you have a little box on)
  Lower left - show for all users, then check that).

  How to change, add or remove startup programs in Windows 7
  http://www.SevenForums.com/tutorials/1401-startup-programs-change.html

  Is a quick check to see who are loading method 2 - using MSCONFIG
  then after a list of these here.
  --------------------------------------------------------------------

  Tools that should help you:

  Process Explorer - free - find out what files, registry keys, and other objects
  processes have open, which DLLs they have loaded and more. This unique
  powerful utility will show you even owned by each process.
  http://TechNet.Microsoft.com/en-us/Sysinternals/bb896653.aspx

  Autoruns - free - see what programs are configured to start automatically
  When your system boots and you connect. Autoruns also shows you the complete list
  locations of registry and files where applications can configure start automatic settings.
  http://TechNet.Microsoft.com/en-us/sysinternals/bb963902.aspx
  Process Monitor - Free - monitor file system, registry, process, thread and DLL
  activity in real time.
  http://TechNet.Microsoft.com/en-us/Sysinternals/bb896645.aspx

  There are many excellent free tools from Sysinternals
  http://TechNet.Microsoft.com/en-us/Sysinternals/default.aspx

  WhatsInStartUP - free - this utility displays the list of all applications that are
  loaded automatically when Windows starts. For each application, what follows
  the information is displayed: Type of startup (registry/Startup folder), Command - Line
  Channel file, the product name, Version, company name, location in the registry or
  file system and more. It allows you to easily disable or remove unwanted programs
  that runs in your Windows startup.
  http://www.NirSoft.NET/utils/what_run_in_startup.html

  There are many excellent free tools to NirSoft
  http://www.NirSoft.NET/utils/index.html

  Window Watcher - free - do you know what is running on your computer? Maybe
  not. The window Watcher says it all, every window created by each execution of the statement
  program, if the window is visible or not.
  http://www.KarenWare.com/PowerTools/ptwinwatch.asp

  Many excellent free tools and an excellent newsletter at Karenware
  http://www.KarenWare.com/

  ===========================================

  Think about it an absolute must - manually update your drivers.

  Vista and Windows 7 updated drivers love then here's how update the most important.

  This is my generic how updates of appropriate driver:

  This utility, it is easy see which versions are loaded:

  -Free - DriverView utility displays the list of all device drivers currently loaded
  on your system. For each driver in the list, additional useful information is
  Poster: load address of the driver, description, version, product name,.
  company that created the driver and more.
  http://www.NirSoft.NET/utils/DriverView.html

  For drivers, visit Maker as replacements and system manufacturer of device which are
  the most recent. Control Panel - write - graphics card - device manager
  the brand and complete model of your video card - double click - tab of the driver-
  Note the version information. Now click on UPdate Driver (this can do nothing
  MS is far behind the certification of drivers) - then do a right click - Uninstall - REBOOT
  This will refresh the driver stack.

  Repeat this for network - card (NIC), Wifi network, sound, mouse, and keyboard
  If there are 3rd party with their own software and drivers and the other main device drivers
  you have.

  Now, go to the site of the manufacturer of system (Dell, HP, Toshiba as examples) (restore)
  and site (Realtek, Intel, Nvidia, ATI, for example) and get the manufacturer and device
  their latest versions. (Look for the system to update the BIOS, Chipset and software updates
  Site of the manufacturer here.)

  Download - SAVE - go to where you put them - right click - RUN AD ADMIN -.
  REBOOT after each installation.

  Always check in the Device Manager - drivers tab to be sure the version you are
  installation actually appears. This is because that some rollback of drivers before the
  later is installed (particularly that audio drivers) so install a driver - reboot.
  Make sure that it is installed and repeat if necessary.

  Repeat to the manufacturers - BTW to the device makers DO NOT RUN THEIR
  SCANNER - check manually by model.

  Look at the sites of the manufacturer for drivers - and the manufacturer of the device manually.
  http://pcsupport.about.com/od/driverssupport/HT/driverdlmfgr.htm

  Installation and update of drivers under Windows 7 (updated drivers manually using
  the above methods is preferable to ensure the latest drivers from the manufacturer of system
  and device manufacturers are located)
  http://www.SevenForums.com/tutorials/43216-installing-updating-drivers-7-a.html

  If you update the drivers manually, then it's a good idea to disable driver facilities
  in the updates of Windows, which leaves on Windows updates, but it will not be installed
  pilots who are generally older and cause problems. If updates provides a new
  driver then hide it (right click on it) and then go get new ones manually if
  you want.

  Stop Windows 7 to automatically install device drivers
  http://helpdeskgeek.com/Windows-7/stop-Windows-7-from-automatically-installing-device-drivers/

  How to disable automatic driver Installation in Windows 7 / Vista
  http://www.AddictiveTips.com/Windows-Tips/how-to-disable-automatic-driver-installation-in-Windows-Vista/

  Turn off Windows Update Device Driver search prompt in Windows 7 / Vista (for the)
  Professional, comprehensive and Enterprise edition)
  http://www.AddictiveTips.com/Windows-tips/disable-Windows-Update-device-driver-search-prompt/

  ===========================================

  Refer to these discussions because many more excellent advice however remember to check
  your antivirus, the main drivers and BIOS update programs and also to solve problems
  with the first method cleanboot.

  Problems with the overall speed of the system and performance
  http://support.Microsoft.com/GP/slow_windows_performance/en-us

  Performance and Maintenance Tips
  http://social.answers.Microsoft.com/forums/en-us/w7performance/thread/19e5d6c3-BF07-49ac-a2fa-6718c988f125

  Explorer Windows stopped working
  http://social.answers.Microsoft.com/forums/en-us/w7performance/thread/6ab02526-5071-4DCC-895F-d90202bad8b3

  I hope this helps.

  Rob Brown - Microsoft MVP<- profile="" -="" windows="" expert="" -="" consumer="" :="" bicycle=""><- mark="" twain="" said="" it="">

• After recent, iPhone, 6, update, Windows, Explorer, does not work, see, iPhone

  I installed the latest update required for my iphone ios 6 a few days ago, and now when I try to download pictures from my iphone to my PC (via USB connection), the PC does not see the iphone.   iTunes sees it yet, but windows Explorer does not work.  It seems that some setting has been broken through the update of ios.  A way to solve this problem?

  Restart the computer and the iPhone. Unlock the iPhone before connecting it to the computer. Any change?

  TT2

• Satellite L300-215: windows Explorer does not respond after recovery

  Hello

  I got a blue screen - don't know what error message was and then stop.
  I realized the recovery process to return to output from the computer in the box, but when I start I only go as far as office and then "windows Explorer is not responding".

  Anyone have any ideas?

  Also if it is a disk failure hard can easily replace the hard drive and the boot of my recovery disks

  Ta

  > Also if it is a disk failure hard can easily replace the hard drive and the boot of my recovery disks
  Yes, easy to replace the HARD drive.
  It takes a HARD drive 2.5 SATA for this laptop.

  But I recommend that you check the first HARD disk using a tool called Drive Fitness Test... Use google to get this software

  Here are a few examples how to replace the HARD drive on the different laptop models:
  http://forums.computers.Toshiba-Europe.com/Forums/Forum.jspa?forumid=116

• I want to delete a program, but it tells me it is running in windows explore, how to find and close?

  II want to remove a program, but it tells me it is running in windows explore, how to find it and close?

  Hello

  I suggest to go to the Task Manager and check the box in the application tab if this application is running, if yes, then try to complete the process and then check if it helps.

  Also check in the process tab:

  http://Windows.Microsoft.com/en-us/Windows-Vista/understanding-process-information-in-Task-Manager
  It will be useful.

• Error "Windows Media could not find a certificate to connect to the network" when connecting to a secure wireless network with WPA2.

  Original title: I'm having a problem trying to connect to a Windows XP SP2 to a wireless secure with WPA2, had this error "Windows Media could not find a certificate to connect to the network.

  Not Applicable

  Hi StheveOses,

  As Cameron O have rightly said, you must have Service Pack 3 and other important updates installed. If you continue to experience problems with the connection to the wireless network, you will have a quick glance at this article.

  How to troubleshoot wireless network connections in Windows XP Service Pack 2

  (Works for Windows XP SP3 as well)

  I hope this helps.

• Windows Explorer does not respond, the applications do not open, System Restore does not work. Help!

  Hello, my computer is having a lot of problems, which started last night. Here are the things that are run:

  -Windows Explorer does not respond
  -Computer cannot disconnect correctly: down/restarts when I close the computer says "disconnect" for hours.
  -Cannot use the system restore and may not even start from Safe Mode command prompt
  -Safe mode does not load
  -No applications work, apart from web browsers, and AVG.
  -Cannot access the drivers, to make anything back.

  I added not all strange programs and I do not think it is malware, but I can't actually run my anti-malware program. My computer is running really hot, what he has always done and I keep it high and the fan not covered (I'm broke, can't afford a fix of the computer, or the new computer).  Please talk is profane. I'm not all that techno.  THANKS FOR ANY HELP!

  The model is:

  M8622 laptop Gateway
  Vista Home Premium 32 Bit

  So I reinstalled everything, and even though it's a pain, my computer is normal again! Must have been a virus.

  Thank you very much for your help!

• I opened a word from Windows Mail document, changed using Word 2007, you press on save and close the document. Now I can not find where he saved.

  original title: Windows Mail ate my file

  I opened a word from Windows Mail document, changed using Word 2007, you press on save and close the document.  Now I can not find where he saved.  I tried the search function in Vista, but it can not find the file either.  I tried to re - open the file in the email, but I just get the original version.  Can anyone suggest where it might be?

  Thank you very much

  Eamonn

  Once you open a Word attachment in an email, you must save it to your HARD drive until you make changes. If you do not, the changes are lost, but the original attachment is still with the e-mail.

• Backup files Vista - "Windows could not find any backup sets [file path]."

  I have a Vista computer.  The hard drive broke so until I replaced it I backed up all the files on the computer to another computer running Windows 7. I did it in the backup and Restore Center.  I made a backup of files, not a full backup of the system (I've seen the full backup of the system mentioned in other posts, but that was not an option... maybe which is only available on Vista Premium).  In any case, I replaced the hard drive and then try to restore the files, but I get the message "Windows could not find any backup sets [file path]."  Anyone have any ideas?  Thank you.

  Here is an article on the restore procedure:http://www.vista4beginners.com/How-to-restore-files to make sure you do this right.  It's a selective restore of a full or selective backup (not a full restore from a full backup) - but since you did a full backup, it matches your process more closely than would a full restore.

  Here is an article on the advanced use of restoration (during normal restore does not work):http://www.mayankraichura.com/post/2009/08/06/Avdvanced-Restore-via-Windows-Vista-Backup-and-Restore-Center.aspx.

  Restore files from a backup
  http://Windows.Microsoft.com/en-us/Windows-Vista/restore-files-from-a-backup

  Back up and restore: frequently asked questions
  http://Windows.Microsoft.com/en-us/Windows-Vista/back-up-and-restore-frequently-asked-questions

  I also found the following (but don't know if it of true or not):

  1. after the start of "backup and Restore Center."

  2. I chose "Advanced Restore"

  3. I was did not an administrator password... maybe because my account is an administrator account.

  4 choose "files from a backup made on a different computer.

  5. in the dialog box indicating "Select the location of the backup to restore", select "hard drive, CD or DVD...". »

  6. under the drop-down list box, select your drive/partition and continue

  7. If all the backups on your drive, it will show a list of them.

  8. in my case, he showed a backup, but in the backup location, it will show "backup location is not available."

  9. I was frustrated, but then I somehow just select this backup (Yes... even if he said that thebackup location is not available " ")

  10. and you press "next".

  11 guess what... no error!

  12. a window appeared asking me if I wanted to do a full restore, or I want to select specific folders or files.

  13. I selected the folders I wanted to restore and bingo... it their restored smoothly.

  14. so that the next time see a mistake, try to continue with him... ;)

  I don't know if this will help, but it does not provide much information about the process (when it works).  I hope you find any error or discrepancy in your procedure and it will clear up and allow you to restore.

  I hope this helps.

  Good luck!
  Lorien - MCSA/MCSE/network + / has + - if this post solves your problem, please click the 'Mark as answer' or 'Useful' button at the top of this message. Marking a post as answer, or relatively useful, you help others find the answer more quickly.

• Windows Explorer does not open

  Windows Explorer does not open when I go into My Documents it tell me that Windows Explorer has encountered a problem and needs to close.  When I go to the report and do not understand but the basics are "error 0xc0000005" and "hpswp_bho.dll" also I can't open the control panel either.  I just installed a new HP Photosmart printer all-in-one wireless.
  Help, please
  Concerning
  Joan Buchanan

  Hi Joan57,

  Hpswp_bho.dll is a ColaBrowser.dll belonging to HP Smart Web Printing to Hewlett-Packard.

  You will need to uninstall it check if it works and if it works contact HP for more information.

  I hope this helps!

  Halima S - Microsoft technical support.
  Visit our Microsoft answers feedback Forum and let us know what you think.

• Windows 7 can not find a device driver for my Bluetooth compatible iPhone 3G

  Windows 7 can not find a device driver for my Bluetooth compatible iPhone 3G

  Click Start > devices and printers > add a device, make sure that Bluetooth is turned on. For additional help, see the following link:
  http://www.Apple.com/support/iPhone/ http://www.activewin.com http://adacosta.spaces.live.com Andre Da Costa

• After you install a second WD 1 TB my book drive, Windows Explorer does not see the new drive.

  Original title: Signature Collision?

  I'm having hard to the installation of a second external drive. I use Windows 7 Ultimate RC. There was a WD 1 TB drive My Book already installed - healthy and works very well. The problem occurred after installing a second WD 1 TB my book reader. I followed all the instructions, pluuging the drive to a USB hub. Windows found the disk, installed drivers and reported the new drive ready for use.

  Windows Explorer does not see the new drive. Devices and printers shows 2 external drives from WD. Disk Management shows as 2 drives, but the second disk is offline because of a 'Signature' Collision

  Each player works very well if it's the only drive plugged in. "Eject My Book" does not work because a program (or more) are to use the player in the background (Windows or Norton).

  I installed the latest firmware and I'm still having this problem. I've been emailing WD with this problem and they are running out of ideas.

  Can anyone help?
  Thank you
  Comatose13

  Hello Comatose13,

  There is an old article of KB in Windows XP that has been recently updated with additional measures to solve this kind of problem. The KB covers Windows XP, Windows Vista and Windows 7 with step by step methods. See if that helps.

  http://support.Microsoft.com/kb/330140

  Bobby

• Windows 7 Ultimate: Explorer is not refreshed after deleting a file, the deleted file still appears in the window, on the manual "Refresh" the file is deleted

  Windows 7 Ultimate: Explorer is not refreshed after deleting a file, the deleted file still appears in the window, on the manual "Refresh" the file is deleted.

  I have also changed the CLASSID HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\ {BDEADE7F-C265-11D0-BCED-00A0C90AB50F} / instance DontRefresh value to 0

  Hello

  (1) have you made changes before the start of this issue?

  (2) what happens when you try to start in safe mode?

  To start your computer in safe mode, you can see the link below:

  http://windowshelp.Microsoft.com/Windows/en-us/help/323ef48f-7b93-4079-a48a-5c58eec904a11033.mspx

  I suggest you to place the computer in a clean boot state and check if the problem is resolved:

  1. sign the computer by using an account with administrator rights.

  2. click on Start, type msconfig.exe in the Start Search box and press ENTER to start The System Configuration utility. If you are prompted for an administrator password or for confirmation, type your password, or click continue.

  3. on the general tab, click Selective startup, and then click on to clear the load startup items check box. (The check box use the file Boot is not available.)

  4. on the Services tab, click to select the hide all Microsoft services check box, and then all disable.

  5. click OKand then click restart.

  6. check if you still have the problem.

  See the link below for more details:

  How to troubleshoot a problem by performing a clean boot in Windows Vista

  http://support.Microsoft.com/kb/929135

  Reset the computer to start as usual after you have finished troubleshooting, follow these steps to reset the computer to start as usual:

  Click Start , type msconfig.exe in the Start Search box and press ENTER.

  1. If you are prompted for an administrator password or for confirmation, type your password or click on continue.

  2. on the general tab, click the Normal startup option, and then click OK.

  3. When you are prompted to restart the computer, click restart.

  If this does not work, try to run a SFC scan. To do a SFC scan follow the steps below:

  Use the System File Checker tool, which is also called scan SFC.

  File system (CFS) auditor verifies that all Vista system files are where they should be as they are by default and not corrupted, changed or damaged.

  1. click on Start, click principally made programs, Accessories, right-click on command promptand select Run as Administrator.

  2. click on continue or provide administrator credentials if prompted.

  3. in the command prompt window , type the following, and then press ENTER:

  sfc/scannow

  4. you should see messages on the screen the following:

  From the analysis of the system. This process will take time.

  Start of the phase of verification of the scanning system.

  % Of verification complete.

  5. once scanning is complete, check to see if the problem you are experiencing is resolved or not.

  Hope the helps of information.