USB printer not recognized after Windows update

OT: usb device not recognized

After that suddenly stop, reboot, done, the device is plugged in where the printer indicates that it does not recognize the device. I said abattissent unplug it and reconnect it and if it doesn't work me to replace... I re install the driver for the Hpdeskjet940c but nothing works...

Hello grasshopper.

This problem may be caused mainly by broken printer drivers, this could have been caused when you installed the updates. I suggest that you start with a restoration of the system on the computer by choosing a restore point when it was working fine.

a. Click Start, type system restore in the search box and then in the list click on the system restore program.

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

(c) in the System Restore dialog box, click on choose a different restore point and then click Next.

d. in the list of restore points, click a restore point created before you started having the problem, and then click Next.

e. click Finish.

You can see the following article for reference:

You can also try driver restore on the computer and check if it helps.

To roll back a driver in Windows send the driver to the version that was finally installed for the device. Restoring a driver is an easy way to return a driver for a working version when a driver update fails to fix a problem or maybe even a new problem.

a. open the Device Manager. To do this, click Start, type device in the area Manager search and then click on Device Manager in the list programs.

b. right click on the device for which the previous version of the driver is desired and then click Properties.

c. click the tab drivers.

d. click on Roll Back Driver.

Thank you
Irfan H, Engineer Support Microsoft Answers. Visit ourMicrosoft answers feedback Forum and let us know what you think.

Tags: Windows

Similar Questions

  • External hard drive is not recognized after Windows Update

    Original title: XP Pro wants to install driver for external hard drive that is Plug-and-Play

    I think that using Windows Update can cause problems (unintentinally or not) for users of Windows XP.

    In a series of accidents with an old computer and reinstall the XP Pro operating system, I discovered that MS Money installing only if it was made before the Windows updates.  (planned obsolescense?) The issue has to do with the removal of the registry AUTORUN file. INF for some new and improved files through Windows Update.  Before the updates, the file exists, and I could install MS money.  After updates, AUTORUN. Missing INF file of the registry.

    Now, I encountered a new problem, and I think that it is also a result of Windows Update.  My external hard drive to IDE, that worked perfectly before on this computer (newer), is no longer recognized and want to reinstall the driver.

    The problem is that it is a Plug-and-Play device, and no driver was needed before updates.  I read somewhere in my many attempts to find a solution that the MS Plug and Play system was replaced by a universal version of this feature (UPNP?)

    It's on a more recent, computer replacement, which came not with a copy of the Windows XP Pro operating system, and I can't just reformat the hard drive and start all over again.

    Someone else has encountered this, and if so, have you found a solution?

    Double Post suite-

    Where is my external hard drive?

    I'm under XP Pro on a Dell Optiplex PC with all the current Windows updates (SP3. Net4, etc..) and last month, I added a USB IDE hard drive. the hard disk enclosure is MASSCOOL, and I used a 250 GB Seagate Barracuda7800. The car worked perfectly until this week. I had the Windows Update critical update automaticlly value and security updates.

    The hard drive has disappeared from "my computer." I tried to plug and unplug in different USB ports, restarted the computer, but continues to receive the "new hardware detected by saying me that new hardware has been detected and that I need to install the necessary driver.

    The problem is that Seagate does not provide any driver for this drive, because it is supposed to be (and was so far) recognized by the Plug-and-Play of Windows XP software. The hard drive enclosure came with a mini CD, but this contains software to use the unit as a back-up, not for storage.

    I can't understand that this change suddenly to believe that something in the Windows updates that have been installed recently changed the command structure, registry files or the drivers themselves.

    I know this is possible, because I've seen what's happened to any program that relied on self. INF file that was originally part of XP. This resulted in programs like Microsoft Money and older versions of MS Office, not being able to be installed by those of us who are not 'technically lit.

    I'm here in left field, or other people have had similar problems? And is anyone know how to solve this dilemma?

    Hello Ron Caley.

    Perform the steps in the link and check.

    Advanced troubleshooting tips for General USB for Windows XP problems

    Hope this information helps.

  • USB port not working after Windows updates

    My laptop does not recognize a USB device I've used in the past.  If I restart the computer after trying to plug it, I get a system repair and it cannot solve the problem.  The only way I could fix is to do a system restore in Sfe Mode, to a point, 2 weeks ago.  The only changes since then have been Windows updates.  How can I fix it

    Restoring the last known time that everything worked as you want!  Check that it works.  Then start to install the updates at the same time with restarts and tests in between.

  • USB device not recognized in windows 7

    USB device not recognized in windows 7

    Hi eyadOdetallah,

    -Is the issue specific to a particular USB device?

    -What software changes you did on the computer before the show?

    Follow the steps below:

    Method 1:

    Run the hardware and devices Troubleshooter to run the automated troubleshooting services.

    Open the hardware and devices Troubleshooter

    Disable and re-enable all the USB controllers.

    Method 2:

    This allows controllers to recover the port USB of his condition does not respond. USB controllers represent the USB ports in Device Manager.

    To disable and re-enable the USB controllers, follow these steps:

    a. Open the Device Manager.

    b. expand Bus USB controllers.

    that you have to scroll down to find this point.

    c. right-click on the first USB controller under Bus USB controllersand then click Uninstall to remove it.

    d. Repeat steps above for each controller USB is listed under Bus USB controllers.

    e. restart the computer. After the computer starts, Windows will automatically check for changes on the hardware and reinstall all USB controllers that you uninstalled.

  • my super USB does not work after last update OS EL Capitan

    my super USB does not work after last update os el capitan

    Hi viral_02,

    The resources below provides a few for the SuperDrive USB troubleshooting steps.  Click on the link to see all the possible symptoms and solutions, including resetting the system management controller.

    Get help with the SuperDrive slot on your Mac computer loading

    If the problem persists, Contact Apple or an provider of services authorized Apple, or make an appointment with an Apple Retail Store additional diagnosis, evaluation, or service.

    Take care

  • Constant pop up of the notice that says "USB device not recognized" after the device has been disconnected

    Trying to connect a Sony W760 to PC Suite and receive the notification as the "peripheral USB is not recognized. Clicked on the indications of alert and monitoring. The device is not installed. Computer restarted, but the alert keeps popping up every 10 to 15 seconds. How to stop?

    Found the answer to the problems by accident. I had turned off my Avast, during the installation of the programs, but did not know that the computer came with Norton already active. Nothing on the screen noted that it is there. The Sony site, under the heading troubleshooting USB and I saw it mentioned to disable McAfee. Became curious and went to control panel > programs and features looking around and found the Norton. Uninstalled, downloaded programs from Sony, install and everything works fine. Just a reminder, check all your security system before installing programs.

  • IPhone 4 usb connection not recognized on Windows fully updated 8.1 update

    Installation program:

    Toshiba laptop Satellite C55A, with authentic Windows 8.1, fully updated.

    With the latest version of Itunes installed, my Iphone 4 is not recognized by using the USB cable.

    In Device Manager:

    The Apple Mobile Device (Recovery Mode) is present, but with a yellow marking seems to indicate a problem

    Worse still, there are two entries in the Device Manager the Apple Mobile Device (Recovery Mode)!

    Try to update the drivers, failed.

    Found this usbaapl64.inf usbaapl64.sys lack.

    Downloaded these files; tried to update again, the same problem saying the drivers for this device are not installed (code 28 )

    I have installed and reinstalled Itunes several times to no vail.

    My iphone 4 is useless now! Whose to blame Microsoft or Apple?


    Hi Paul,.

    Thanks for the reply with the status of the issue.

    It seems to be a problem with iTunes not with Windows. I suggest you try reinstalling iTunes and check if it helps. If the problem still persists, then try to install iTunes in Windows 7 compatibility mode and check if it works for you.

    Refer to the procedure described in article Microsoft Help that I provided in my previous reply to install iTunes in compatibility mode.

    Just reply to the State of the question so that we can help solve you the problem.

  • Brother printer and the scanner does not work after Windows Update.

    Separated from this thread.

    I have the same problem with my Brother ADS2000 scanner and my multi MFCJ4710.  I can print with the MFC, but the Control Center detects or scanners.  They worked and suddenly stopped.  I wonder if Windows update changed something?  Scanners both work with Windows Fax and Scan, but not Brother Control Center 4.  I called support of brother and again, they have said something about TWAIN and I have to do some registry clean.  I tried their manual steps, they sent with the registry fixes and which totally screwed up on my computer.  I had to do a restore and now back to square one.

    Any solution out there?

    It was my dose,

    (1) start search box type menu "user accounts".

    (2) open and select "user account control settings."

    (3) to change the cursor to "never notify".

    (4) 'ok' to save

    (5) fact! You may need to restart you machine.

    PS: this was my fix, it was caused by software AVG anti-virus, AVG has replaced this setting and would fail to wireless for my scanner. It will be useful.


  • Driver for my printer not recognized by windows 8. Device

    I tried to install an old printer in windows8. The pilot was not available and none was available at HP. I get the message not recognized usb device and I can't get rid of the message. Chat help or tech support Microsoft have not been able to help. all of the suggestions.

    If this printer manufacturer provides no driver win7/8 and windows update via Add printer has no drivers, its does not work

    And any workaround method will be more expensive than buying a new printer compatible

  • NB550D - does not start after Windows Update

    NetBook may have turned off during the update of Windows like now it will not go beyond the Green loading bar with 'Microsoft Corporation' below. It gives an option to start windows normally or to load files to repair, but the two find themselves stuck on the Green loading bar. SafeMode (all options) earn as much as classpnp.sys and then freezes.

    Using a different laptop I did a windows repair disc and then copied the files on the USB key (netbook has no CD drive) according to the guides online. When the USB key is loading files of repair, there is a flashing cursor, and then he's new to the Green loading bar. SafeMode (all options) gets stuck on disk.sys with inserted USB.

    Found a few threads with similar symptoms with most being caused by a questionable HD (verified, nothing obviously disconnected) connection or the SATA mode in the BIOS the wrong (seems to make no difference between ACHI or Compatible). Next plan is to start a live version of linux and try to replace the classpnp.sys file with on another copy of Windows 7.

    If anyone has experienced this before or can give indications that they would be much appreciated,
    Thank you.


    To be honest, never had any problems after a windows update.
    But it looks like an anomaly in the system.
    My first idea was the use of the repair option and you try to start the operating system using the option: use the last known good configuration.

    But if it would not help, then you can try to replace the files to aid and booting from the Live CD. Not sure if this would solve the problem, but I think that it of certainly worth trying otherwise you will have to reinstall the OS using the HARD drive recovery (if still available)

  • Help, INternet explorer does not work after windows update

    One day, the computer automatically downloads and installs the programs that are recommended by microsoft windows.
    After installation, my INternet explorer does not work.

    It reads:

    Windows could not access ' '.
    Windows received an HTTP error message: 403 (refused).
    -> If this problem is consistenly prevent windows to connect to several sites on the Internet, contact your network administrator or your ISP.

    Then I click ok, and then try to go on ' '.
    It still does not work, so I click on diagnose connection problems
    This time, it reads:

    Windows not found no problem with the network connection on this computer.

    You want to report the problem to Microsoft? Additional details about what went wrong can help create a solution. The report will be sent the next time you go online.
    Send information

    But when I send, I can not because I have Canon go online on my Internet Explore.
    When he first stopped working, I could use the system restore, but after a few months I dropped and now I can't restore the system to a place that it worked fine.

    I also know that this problem is not the administrator of network or something like that because I downloaded Firefox when IE stopped working, and Firefox works fine.

    I tried everything, but I can not do it by myself, so help please!

    @ceda only: See...

    Help: I got hacked. Now what should I do?

    Backup of personal data (which none should be considered 100% reliable at this point) then do a format and clean install of Windows.  Please note that a repair installation (upgrade AKA on-site) will NOT fix it!

    HOW to do a clean install of Windows XP: see method 1 and in

    Once installed the clean, you will have the equivalent of a "new computer" in order to take care of everything on the next page before connecting the machine to the internet or a network otherwise and before using a USB key that is not brand new, or has not been freshly formatted:

    4 steps to help protect your new computer before going online

    Other useful references include:

    HOW to get a computer that is running Windows XP Gold (no Service Pack) fully patched (after a clean install)

    HOW TO get a computer that is running Windows XP SP1 (a) or SP2 fully patched (after a clean install)

    Tip: After getting the computer fully patched, download/install KB971029 manually:

    NB: No matter what Norton or McAfee free trial which is preinstalled on the computer when you bought will be reinstalled (but invalid) when Windows is reinstalled. You MUST uninstall the trial for free and download/run the removal tool before installing updates, Windows Service Packs, or updates IE and before installing your new anti-virus application (which will require WinXP SP3 must be installed).

    Norton Removal Tool

    McAfee Consumer product removal tool

    See also:

    Measures to help prevent spyware

    Measures to help prevent computer worms

    Avoid fake security software!

    ~ Robear Dyer (PA Bear) ~ MS MVP (that is to say, mail, security, Windows & Update Services) since 2002 ~ WARNING: MS MVPs represent or work for Microsoft

  • Windows does not load after Windows update on January 8, 2010

    Basically, I've updated windows last night and is gone to bed and after I myself woke up and turned on the computer, windows won't load.

    There was an option to repair, but he says "Startup Repair cannot repair this computer automatically.

    So I ran the hardware test and everything was fine.  I tried to do a system restore... but it is come to the same, exact screen stating that «Startup Repair cannot...» ». I tried to run in safe mode and exactly the same result.

    I don't want to try to restore the computer to factory settings and lose everything I have.

    Help, please!

    Windows Update Forum:

    You will get the best help for any problem of Update/Service Pack in the Windows Update Forum; the link below:

    When you repost here, kindly include Error Codes, as appropriate, and exactly what happened when you did the update last night.

    In this way, you will receive the best help.


    If the worst happens, follow these steps below for data recovery before reinstallling:

    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:


    Download/save the file Knoppix Live CD ISO above.


    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 1st 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

  • Lightning will not rise after Windows update 10

    My computer came installed with Windows 7 Professional 64 bit. The computer has a Thunderbolt 2 interface. I loaded the software and the drivers were mounted and worked a lot their use in Garland.

    External drives are USB 3.0 and LaCie thunderbolt. The computer was shipped with the HP security software. I did the upgrade to Windows 10; in the Windows dialog box update, said could not be updated without removing the HP security. I said yes, and since that time, readers not only mount.  After the update, and readers would not mount. I then used system restored and returned the computer to Windows 7.

    When I tried to reload the drivers for LaCie drivers, I get cannot lack of file sysInfo.dll. I download this file, place it in the system 32 folder. After a reboot, I tried and the pilot program installed. However, readers will not rise. I contacted HP and they remote connected to my computer, BIOS update installed, chip set drivers and still drives don't mount not via the port of Thuderbolt2.

    They run a lot when it is connected to the USB 3.0 port. My logic is readers are very much like the mount and run fine with USB 3.0, but is no longer the mount with the crush. I am a photographer and work with large files often 1 GB or more. Thus, the impact of lightning speed is desired.

    I have the drive Professional OEM Windows 7 SP1, however I have a large amount of the image installed and that you hope to find a way to solve this problem without the operating system reinstallation and all the photo editing programs. A pre thank you for everything that helps her.


    Thanks for posting your query on the Microsoft Community.

    Method 1: Run System Maintenance troubleshooting

    I suggest that you click on the link below and run the hardware and peripheral troubleshooting tool by following the steps.

    Open the hardware and devices Troubleshooter

    Method 2: Update storage controller drivers

    Follow the steps below.

    1. press the Windows key + X , and then click Device Manager.

    2. expand storage controller.

    3. right-click on the driver and select Update driver software.

    4 reboot your system.

    I hope this helps. Please respond if you have related research.

    Kind regards

    Jesinta Rozario

  • Qosmio F750 - touch buttons does not work after Windows update 10

    I use a laptop Qosmio F750 (PQF75A-02Y00Q).

    Installed on the computer the previous operating system was Windows 7 Home Premium 64-bit. Then, I upgraded the operating system to Windows 64-bit edition 10.

    As expected, this change would cause problems to appear. The thing that is really bothers me right now is that the touch of the keys in the top right of the keyboard do not work as expected.

    The buttons respond always if you touch them, but they do nothing on the screen. for the most part. When I touch the Volume Up / Volume keys down, they work as expected. However, the key Mute, the button Play/Pause, the Wifi key on / off and Mode (as well as the key to toshiba bulletin board) eco button do nothing.

    Curiously, when I manually turn eco mode from the power settings mode eco button again turns the green.

    My last question is, how can I fix this so that ALL keys work as expected?


    I noticed that the recognition facial webcam was funny things as well, but everything what needed to be done was to recalibrate the installation for that to make it work again.
    Curiously, all the FN key functions work well.

    In addition to the question in bold, there are all the other drivers should I install to improve/restore functionality to my laptop? As the page of Windows 8?


    I have the same problem since update 8.1 and now after 10 update, even more I lost the 3d display function since I updated to 8.1.
    MY QOSMIO is PQF75E-F750

  • Laptop HP - 15-r213ns: hotkeys (keys of wifi sound, brightness), does not work after windows update


    I have a HP laptop - 15-r213ns (ENERGY STAR) with windows 8.1

    Last night, after an update of windows, the shortcut of the brightness (F2 and F3) volume (F7 and F8), wifi (F12) and keys all others have stopped working.  I can always change the brightness and volume using windows, but I can't do more using the keys.

    The function keys are working, as refresh F5 or F3 Browse. I noticed that before I had to press the FN key for this and now she does without the FN + Fx, so I guess that the update of windows must have changed something here.

    They used to work fine before the update. I reinstalled the display drivers (NVIDIA G-FORCE 820 - M) and looked for new drivers or update drivers using HP Support Assistant, but everything is up-to-date.

    I was looking for hot key factors in the page of HP drivers for my product but could not find any keyboard, drivers or software related shortcut keys.

    any suggestions?

    Thanks in advance,


    Hi, Marco:

    The system of the event utility is supposed to get the Fn keys to work.


    This package contains the HP System Event utility for the laptop models running a supported operating system. HP System Event Utility allows the special programming function keys.

    File name: sp70439.exe

    You can find this file in the Software - Solutions section of the driver for your model page.

Maybe you are looking for

  • 27 "iMac buying tips

    After waiting 2 years for an upgrade to the Mac Pro 2013, I decided to settle for a 27 "iMac.  "Read a few reviews that suggest the fastest iMac27 2015" 4.0 GHZ with 64 GB of ram is actually faster than the Mac Pro 2013 when working on 20 GB files in

  • Cannot display URLs

    Cannot display the complete rankings ( on the site of the PGA TOUR. I have information of the site COMPUTER he uses Javascript and pop-up windows. It's white table in "Content" FF.

  • Pop - annoying up on my pages web site

    Recently I was an annoying pop up on all the pages of my web it's a site commercial marketing our business educationproducts. At first I thought it was something on my computer that was originallyThis, but now I get comments f

  • duplicate records

    HelloMy computer seems to duplicate files from one place to the other, when I open a specific folder, I always have a double, as a record "under". When I click on the folder "sub", my wallpaper changes abruptly and the standard background (winchap ba

  • CPU wanted

    Where can I get a CPU for my HP Pavilion dv6-1214ax? I think HP 532120-001 part number. An alternative CPU that would be appropriate would be ok. I am currently in Sydney Australia and would like to know the local HP support direct contacts. In the S