T420s black screen and no boot

Similar Questions

• Satellite A200-1CR - black screen and no boot

  Model:
  Toshiba Satellite A200-1CR

  Question:
  By pressing the power button to power on the computer for a full boot, the power LED lights up but still black screen (not even of lighting). The logo led 'Satellite' in the lower left corner of the chassis remains off while the HARD drive has made a unique quick snap; DVD activity led (the device) always remains on even without any CD inserted, by pressing the eject button do nothing (status bar is locked) and no sounds of activity.
  No logo screen of boot (show stays), not of beeps dark and wide, no DVD or HARD disk activity, keyboard seems does not (all combinations that should light up an led, capslock, numlock, etc, does nothing), the fan works.

  I have already (without success) tried:
  -Unlock the tray, insert the rescue CD and power on
  -Remove the main battery and power on with AC adapter only
  -Insert a bootable USB stick/external HARD drive

  The computer worked as expected the day before and there has not been any kind of shock. Described is the situation I faced when I turned on the next time (only 24 hours later).

  What could be wrong?
  Thank you.

  > By pressing the power button to power on the computer for a full boot, the power led turns on but screen stays black

  Well, looks like hardware problem; Maybe the memory problem or something serious with the mother or the CPU. It of really difficult to say what could cause this.
  You can try to check the RAM modules.
  Trying to start using a maybe only module, it is useful in the case otherwise I fear, you will need assistance from technicians Toshiba ASP m

• Invalid product key, left my computer with a black screen and a cursor of the mouse on the boot.

  A few days ago, I tried to upgrade Windows 7 Home Premium (64 bit) to Windows 10 using the free update. Installation hung at 84% for 2 hours, then restarted, was unable to recover the installation and then could not get back to Win 7. This left us with a black screen and a cursor of the mouse on the boot. The computer would remain in this State for about 10 minutes and then reboot and repeat.

  Fortunately, or so I thought, I had a few CD Windows installation backup from the back to the era of digital river. So I thought I'd install fresh on my empty partition, copy my files and data, and then format the partition with the installation broken on.

  I did, but now he tells me that my product key is not valid and cannot be activated. The product key came on a real label on the PC when we bought it.

  The key is for X 16-96072. I installed X 17-58997 (Windows 7 Home Premium x 64 with SP1 (u)). I don't know what is the problem with the key? Should I have installed without the (u)?

  One key 25 digits grouped in 5 sequences of 5 characters not X 17-58997.

  To analyze and solve problems for Activation and Validation, we need to see a full copy of the diagnostic report produced by the MGADiag tool (download and save to the desktop -http://go.microsoft.com/fwlink/?linkid=52012 )
  Once downloaded, run the tool.
  Click on the button continue, after a short time, continue button will change to a copy button.
  Click the copy button in the tool (ignore the error at this stage) and then paste (with r-click and paste or Ctrl + V) in your message.

• When I try to boot my laptop it says prepare don't then it goes to black screen and nothing happens

  original title * Auto repair

  When I try to boot my laptop it says prepare don't then it goes to black screen and nothing happens. Before that, I got a message that some files are missing or that contains errors and it showed error 0xc0000185 and a \efi\microsoft\boot\bcd file.

  Hi Mark,

  Thank you for your response.

  According to your description, I understand that when you tried to install Windows from a support your computer freezes.

  I suggest boot you from the DVD and click on repair your computer and check if it helps.

  If the problem persists try the steps below.

  Method 1:

  Step 1: Access Mode safe mode with command prompt and run SFC

  System File Checker is a Windows utility that allows users to find corruptions in Windows system files and restore damaged files

  1. Go to safe mode with command prompt Mode.
  2. Now in the command prompt window, type sfc/scannow and press enter (Note: there is a space between sfc and/scannow).

  Step 2: If SFC help not try to run the disk check in the command prompt.

  Type the following command and press ENTER:

  CHKDSK /scan

  Important: All performing hard disk the disk check if bad sectors are found on the hard drive, while the bad sectors can be refunded, but there may be loss of data.

  Hope this information helps and let us know the State of the question, we will be happy to help you.

• Satellite Pro L450D black screen and will not respond to any keys

  Hello

  My niece has used his Toshiba L450D for almost a year now and he really liked it, who was until last month. She turned on her laptop and when she presses the button of the mouse, the button cracked and he fell into the laptop.

  Now my brother contacted Toshiba and I was told because it is under warranty it might return for repair because it was a common fault. Then he he packed in loads of air bubbles and a box to make sure it was safe.

  A few weeks later he came back repaired but we were all shocked that the laptop was put in a very loose box and you could hear this rattling noise. When we turned on the battery was flat and we had a new boot menu.

  As she installed it Windows 7 laptop would boot directly into Windows 7, but now after the repair of the laptop shows a menu black screen with as follows:

  + Windows 7 +.
  + Recover Windows to Factory Settings [active EMS] +.

  So we started in Windows and everything went well, but now after 5 or 10 or even 20 minutes, laptop displays a black screen and will not respond to keys or mouse movement. There is nothing on the screen its just black.

  I started in SafeMode (which was more difficult with the new menu) and it does the same thing. I even managed to do a virus scan quick who took 3-4 minutes and was clean.

  I would like some advice on what my niece is very angry, and it's difficult to explain what is happening to a child in the primary school.

  Any help would be grateful.

  Hello

  Have you tried the option of HARD drive recovery?

  If this is not the case, try to set the notebook back to factory settings using HARD drive recovery.
  Turn on the device, press F12, choose repair my computer, then select Toshiba HDD recovery.

  I hope it will work!

• Satego X 200-21 L - black screen and 3 beeps at startup

  Hello

  I have a problem when I turn on my computer (Satego X 200-21 L). I had a black screen and 3 don't beeps no boot up BIOS not nothing what do I do?

  Everyone everyone please help!

  Hello

  Looks like a hardware malfunction on your laptop, because normally these beep codes mean that it s something wrong with the hardware.

  Is that what you have installed extra RAM? If Yes, remove it and try to boot with original RAM only. Also try to reset the RAM in the slot.
  It work?

  In the worst cases, you must go to an authorized service provider. Technicians can check the laptop and determine the cause of this problem.

• When I was playing the game and my 3D PC show the black screen and the sound of noise.

  Hi Admin,
  When I was playing the game and my 3D PC show the black screen and the sound of noise. And then I can't move anything and I can restart only. What is this problem? I don't know why? Please help me what should I do.
  My PC specs are as follows

  Aspire M5800 (Q84MR375) Genuine Windows Vista® Home Premium, 64-bit, Intel Core 2 Quad processor Q8400 (2.66 GHz, 4 MB L2 Cache, bus front at 1333 MHz), 3 GB Ram, 750 GB S - ATA HDD, DVD SuperMulti Double Layer drive, Nvidia GeForce GT220 graphics (1 GB dedicated RAM) card, Wireless LAN, keyboard and wireless mouse with LCD 23 '' monitor.

  phoechan,
  More than likely if this started after you upgrade to Windows7 then you might have to update your hardware drivers.  Go to the websites of the manufacturers of hardware for your PC and get all the latest drivers for Windows 7 (video, sound, chipset, etc...).  If they don't have Windows 7 drivers you may have questions until they create them.  You can also try to boot your PC and also right click on the game .exe file and change the compatibility mode to Vista or XP.

  Mike - Engineer Support Microsoft Answers
  Visit our Microsoft answers feedback Forum and let us know what you think.

• Computer will not start with Windows. I get a black screen and a blinking cursor.

  Windows XP Home Edition startup problem

  I have Windows XP Home Edition, but the computer does not start at the top.  I get a black screen and a blinking cursor.  I have an XP installation disc.  I was in the Recovery Console to recover all of the standard tasks, but nothing helped.

  Brand, model and model number of your PC?

  Are you able to get into the BIOS?
  What took place prior to this problem?
  For now, you can read this to get some ideas:
  http://tips4pc.com/computer-problems/my-computer-boots-up-to-a-black-screen-with-a-flashing-cursor.htm

• At the start of the laptop goes to a black screen and says invalid partition.

  Original title: can I PRO 1-2cpu (IBM Laptop) Xp.

  • Not long I Formated my Windows XP PRO 1-2cpu, thinking that he would have run faster, not a blue screen crash and eliminate any viruses that could in fact, now that its formatted I can't use, whenever I start the laptop it goes to a black screen and says invalid partition, I don't know what that means though.

    so my question is there a way I can restore the computer back to normal? However, I don't have a recovery disk.

  A lot depends on how reformat you your hard drive.  Most manufacturers have a recovery partition on the hard drive that can be used to reinstall the operating system. Access you this by pressing a button that appears briefly at the beginning of the boot process.  If you have reformatted the drive c: partition only you might be OK and can get by using this recovery partition.  Otherwise, if you reformatted all the hard drive, then your only alternative is to get a Windows installation CD, boot from this CD and reinstall Windows.   Contact your computer manufacturer for advice.

  HTH,
  JW

• When I try to reboot my laptop (toshiba Windows Vista) displays a black screen and now I can not it reboot. It says bootmgr missing. What should I do to restart?

  Can someone help me please! When I try to reboot my laptop (toshiba Windows Vista) displays a black screen and now I can not restart. It says systeminst9.wnm is missing. What should I do I restart yo?

  Hi Ashutosh,

   
  You did changes to the computer before the show?
   
  This error indicates that the boot sector is corrupted or missing.
   
  I suggest for the link and follow the steps in the article:
  Windows error message «Bootmgr is missing Press Ctrl + Alt + Delete to restart»
  http://support.Microsoft.com/kb/2622803
   
  Note: When you perform the system restore to restore the computer to a previous state, programs and updates that you have installed are removed.
   
  Hope this solves the problem. If the problem persists, you can write to us and we will be happy to help you further.

• I accidentally put 100 files on my desktop and it went to black screen and will not work

  I accidentally put 100 files on my desktop and it went to black screen and will not work

  Hello

  Following methods and check if that helps.
  
  Method 1:

  Step 1:

  Start your computer in safe mode and check if it starts very well.
  
  Step 2:

  If the system starts in safe mode, then there would be a third-party software, causing the issue to occur. I wish that you start your machine in a clean boot State. Clean boot helps eliminate conflicts of third party software.

  Note: Follow step 7 to your computer as usual.

  Method 2:

  If this does not help, you can perform System Restore in safe mode.

• Black screen and cursor only

  I have Vista Ultimate and after BIOS boot I get the black screen and nothing else. I can get into CMOS with little or no problem, but not everything can go further. Any terminology suggestions to solve this problem?

  Hello

  You can access Mode safe? Repeatedly press F8 as you start? If yes you can try Control Panel - device
  Manager - graphics card - Double click on - driver tab - click on UPDATE driver - then right click
  on devices and UNINSTALL - REBOOT.

  Another method to try to get to the desktop (try in normal Windows Mode without failure)
  CTRL + ALT + DELETE and on the tab process EXPLORER.exe and COMPLETE the PROCESS on this subject - then
  on the Applications tab - lower right - new task - type in EXPLORER.exe. Safe mode is reached
  by tapping F8 as you start several times.

  First check this thread in case it is simple and if not to come back to this thread.

  http://social.answers.Microsoft.com/forums/en-us/vistaprograms/thread/50247d5e-0ae0-446c-A1bd-11287fd1478a

  Black screen problems are extremely difficult to repair and all patch is usually on a base hit or miss.
  That there is no information on a black screen as it is on a blue screen just adds to the
  Difficulty. Often using a restore point or Startup Repair will have no effect. You can try a
  Google to see the proposed repairs, whom some have worked however these cover a wide
  field efforts.

  Here's a video of one of them.

  http://www.Google.com/search?hl=en&q=black+screen+of+death+Vista&btnG=search&AQ=f&OQ=&AQI=G1

  Here's another fix
  http://blogs.PCMag.com/SecurityWatch/2008/12/the_mysterious_black_screen_of.php

  You have a Vista disk? You can try restoring the system to it. If you don't have the disks your
  system manufacturer will sell them at low prices. Or try in safe mode if you can get there.

  How to make a Vista system restore
  http://www.Vistax64.com/tutorials/76905-System-Restore-how.html

  You can create a recovery disc or use someone even version (making the system restore it)
  must be bootable).

  How to create a Vista recovery disk
  http://www.Vistax64.com/tutorials/141820-create-recovery-disc.html

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

  These require the correct Vista discs since you can not start safe mode.

  Try the Startup Repair tool-

  This tells you how to access the System Recovery Options and/or with a Vista disk
  http://windowshelp.Microsoft.com/Windows/en-us/help/326b756b-1601-435e-99D0-1585439470351033.mspx

  Try recovery options Startup Repair

  How to do a startup repair
  http://www.Vistax64.com/tutorials/91467-startup-repair.html

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

  Here are a few Google searches where many have found different solutions:

  Vista black screen - check that a 1st
  http://www.Google.com/search?hl=en&source=HP&q=Vista+black+screen&AQ=f&OQ=&AQI=G10

  Vista black screen Solution
  http://www.Google.com/search?hl=en&q=Vista+black+screen+solution&AQ=f&OQ=&AQI

  Vista black screen Fix
  http://www.Google.com/search?hl=en&q=Vista+black+screen+fix&AQ=f&OQ=&AQI

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

  If necessary and you can access all ordinary Windows.

  You can try an In-Place Upgrade (hopefully save programs and data) or a repair installation
  (if all goes well, the data records and need to reinstall programs). Be sure to do a good backup or three.

  You can use another DVD that aren't copy protected but you you need to own
  Product key.

  On-site upgrade
  http://vistasupport.MVPs.org/repair_a_vista_installation_using_the_upgrade_option_of_the_vista_dvd.htm

  If nothing works, you can make a repair facility that must save the data but you will need to
  Reinstall the programs. This also requires correct Vista disks especially for OEM versions. You will be
  need to know your product Code.

  This tells you how to access the System Recovery Options and/or a Vista DVD
  http://Windows.Microsoft.com/en-us/Windows-Vista/what-happened-to-the-recovery-console

  How to perform a repair for Vista Installation
  http://www.Vistax64.com/tutorials/88236-repair-install-Vista.html

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

  Another method that works sometimes: at the command prompt, type of Vista startup disk:
  (a line type or copy and paste one line at a time and hit enter - enter a bracket)
  or "BOLD")

  c:

  cd\

  CD c:\Windows\System32\winevt (there is a space between cd and C :)

  Ren LogsOLD Logs (there are spaces between ren and newspapers and Logsold)

  RESTART Windows

  I hope this helps.

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

• Start the computer to black screen and the computer runs hot

  original title: sick Vista laptop

  My daughter portable computer began acting strangely very yesterday.

  Once connected, I get a black screen and a cursor.  The system seems to work at full speed, because I can hear the fan, and it runs very hot.  No matter how long it sits, the desktop does not appear.

  I can use Ctrl-alt-del to display the Task Manager.  The list of processes is limited to the process of the current user, and none of them use important CPU. If I click on 'See the process for all users', taskmanager freezes and I have to disconnect to get rid of him.

  Using the Task Manager, I can kill the process Explorer and then start it again, date at which I get my desktop.  However, it is still running hot and noisy.  With the help of SysInternals ProcessExplorer, there is no process using any important CPU.  Most of the time CPU is reported as inactive.

  I don't know what to think.  A boot loader took over the system?  A hardware problem?  OS corrupted files?

   

  Follow these steps to try to solve your problems of boot.

   

  Restore point:

  http://www.howtogeek.com/HOWTO/Windows-Vista/using-Windows-Vista-system-restore/

  Do Safe Mode system restore, if it is impossible to do in Normal Mode.

  Try typing F8 at startup and in the list of Boot selections, select Mode safe using ARROW top to go there > and then press ENTER.

  Try a restore of the system once, to choose a Restore Point prior to your problem...

  Click Start > programs > Accessories > system tools > system restore > choose another time > next > etc.

  http://www.windowsvistauserguide.com/system_restore.htm

  Read the above for a very good graph shows how backward more than 5 days in the System Restore Points by checking the correct box.

  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

   

  If restore work not and you do not have a Vista DVD from Microsoft, do a repair disc to do a Startup Repair:

  Download the ISO on the link provided and make a record of repair time it starts.

  Go to your Bios/Setup, or the Boot Menu at startup and change the Boot order to make the DVD/CD drive 1st in the boot order, then reboot with the disk in the drive.

  At the startup/power on you should see at the bottom of the screen either F2 or DELETE, go to Setup/Bios or F12 for the Boot Menu.

  When you have changed that, insert the Bootable disk you did in the drive and reboot.

  http://www.bleepingcomputer.com/tutorials/tutorial148.html

  Link above shows what the process looks like and a manual, it load the repair options.

  NeoSmart containing the content of the Windows Vista DVD 'Recovery Centre', as we refer to him. It cannot be used to install or reinstall Windows Vista, and is just a Windows PE interface to recovering your PC. Technically, we could re-create this installation with downloadable media media freely from Microsoft (namely the Microsoft WAIK, several gigabyte download); but it is pretty darn decent of Microsoft to present Windows users who might not be able to create such a thing on their own.

  Read all the info on the website on how to create and use:

  http://NeoSmart.net/blog/2008/Windows-Vista-recovery-disc-download/

  ISO Burner:http://www.snapfiles.com/get/active-isoburner.html

  It's a very good Vista startup repair disk.

  You can do a system restart tool, system, etc it restore.

  It is NOT a disc of resettlement.

  And the 32-bit is what normally comes on a computer, unless 64-bit.

  See you soon.

  Mick Murphy - Microsoft partner

• Need help with windows defender. all my files folders pictures everythiing disappeared and I find myself with this black screen and it is not all good: o)

  Need help with windows defender. all my files folders pictures everythiing disappeared and I find myself with this black screen and it is not all good: o)

  I don't know why vista windows no longer charge, or when the files and folders disappeared

  How Windows Defender is on this problem?

  Follow these steps to try to solve your problems of boot.

   

   

  Restore point:

  Try typing F8 at startup and in the list of Boot selections, select Mode safe using ARROW top to go there > and then press ENTER.

  Try a restore of the system once, to choose a Restore Point prior to your problem...

  Click Start > programs > Accessories > system tools > system restore > choose another time > next > etc.

  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

   

  If restore work not and you do not have a Vista DVD from Microsoft, do a repair disc to do a Startup Repair:

  Download the ISO on the link provided and make a record of repair time it starts.

  Go to your Bios/Setup, or the Boot Menu at startup and change the Boot order to make the DVD/CD drive 1st in the boot order, then reboot with the disk in the drive.

  At the startup/power on you should see at the bottom of the screen either F2 or DELETE, go to Setup/Bios or F12 for the Boot Menu.

  When you have changed that, insert the Bootable disk you did in the drive and reboot.

  http://www.bleepingcomputer.com/tutorials/tutorial148.html

  Link above shows what the process looks like and a manual, it load the repair options.

  NeoSmart containing the content of the Windows Vista DVD 'Recovery Centre', as we refer to him. It cannot be used to install or reinstall Windows Vista, and is just a Windows PE interface to recovering your PC. Technically, we could re-create this installation with downloadable media media freely from Microsoft (namely the Microsoft WAIK, several gigabyte download); but it is pretty darn decent of Microsoft to present Windows users who might not be able to create such a thing on their own.

  Read all the info on the website on how to create and use:

  http://NeoSmart.net/blog/2008/Windows-Vista-recovery-disc-download/

  ISO Burner:http://www.snapfiles.com/get/active-isoburner.html

  It's a very good Vista startup repair disk.

  You can do a system restart tool, system, etc it restore.

  It is NOT a disc of resettlement.

  And the 32-bit is what normally comes on a computer, unless 64-bit.

  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

  Data recovery:

  1. slave of your hard drive in another computer and read/save your data out there.

  2. put your Hard drive in a USB hard drive case, plug it into another computer and read/save from there.

  3 Alternatively, use Knoppix Live CD to recover data:

  http://www.Knopper.NET/Knoppix/index-en.html

  Download/save the file Knoppix Live CD ISO above.

  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

  http://isorecorder.alexfeinman.com/isorecorder.htm

  Download the Vista software from the link above.

  After installing above ISO burning software, right click on the Knoppix ISO file > copy the Image to a CD.

  Knoppix is not installed on your PC; use only the resources of your PC, RAM, graphics etc.

  Change the boot order in YOUR computer/laptop to the CD/DVD Drive 1^st in the boot order.

  Plug a Flash Drive/Memory Stick, BOOT with the Live CD, and you should be able to read the hard drive.

  When the desktop loads, you will see at least two drive hard icons on the desktop (one for your hard drive) and one for the USB key.

  Click on the icons of hard drive to open and to understand which drive is which.

  Click the icon for the USB drive and click on "Actions > Change the read/write mode" so you can write to disk (it is read-only by default for security reasons).

  Now to find the files you want to back up, just drag and drop them on the USB. When you're done, shut down the system and remove the USB key.

  See you soon.

  Mick Murphy - Microsoft partner

• Windows 8 black screen and the cursor after the connection

  Hello. I tried to upgrade to 8.1 Windows 8 Windows and it is stuck on like 3% for one hour, so I just rebooted the computer and he returned to Windows 8. I'm going to sleep and come back the next day and go on my laptop and it auto connects me and it goes to a black screen and I only have the slider on the black screen after login. I don't see the start menu, but I receive notifications for as sticky keys or any other notifications lights. I turned off my computer at least 20 times, took out the battery, empty the battery and tried to boot in safe mode with no luck. It is unlikely that it is an internal problem, because if I leave my computer alone for a few minutes, my screen saver photos appear. If anyone can help me solve this problem or help me get in easier safe mode would make things less stressful. I have an Acer Aspire V5 - 571 series. Thank you.

  Hi Roy,

  This problem may occur because of corrupted on the computer boot files.

  I suggest you to perform the checking and automatic repair if this solves the problem.

  If you do not have a DVD of Windows 8, I suggest you check out the link to see how to create an installation of Windows 8 media:

  http://Windows.Microsoft.com/en-in/Windows-8/create-reset-refresh-media

  Follow the methods suggested below:

  Method 1:

  Start on the recovery environment using the installation of Windows 8 media.

  Follow the steps below:

  Note: before proceeding further, make sure that the boot priority is set on DVD drive in BIOS. BIOS change / semiconductor (CMOS) to complementary metal oxide settings can cause serious problems that may prevent your computer from starting properly. Microsoft cannot guarantee that problems resulting from the configuration of the BIOS/CMOS settings can be solved. Changes to settings are at your own risk.

  • Insert the DVD to install Windows 8 on DVD-ROM and restart your computer.
  • After you start your computer by using the Windows DVD or the system repair disc, a black screen is displayed with the gray text "Press any key to boot from CD or DVD". Press a button on any.
  • Select the type of keyboard and good time.
  • Click repair your computer in the lower left corner.
  • Select Troubleshooting in choose an option screen.
  • In Troubleshooting screen, click Advanced options .
  • Click the automatic repair of the Advanced Options screen.
  • Then choose the operating system.
  • Windows 8 will then pick up questions on the hard drive and check that all required files are intact.

  If the problem persists, proceed to the next method.

  Method 2:

  Follow these steps to perform a system restore:

  • After you start your computer by using the Windows DVD or the system repair disc, a black screen is displayed with the gray text "Press any key to boot from CD or DVD". Press a button on any.
  • Select the type of keyboard and good time.
  • Click repair your computer in the lower left corner.
  • Select Troubleshooting in choose an option screen.
  • In troubleshooting screen, click Advanced options .
  • Select System Restore.

  For reference:

  http://support.Microsoft.com/kb/2756559/en-us

  Note: BIOS change / semiconductor (CMOS) to complementary metal oxide settings can cause serious problems that may prevent your computer from starting properly. Microsoft cannot guarantee that problems resulting from the configuration of the BIOS/CMOS settings can be solved. Changes to settings are at your own risk.

  Please let us know the results.