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rtwlanu.sys failed

Anonymous
2018-02-27T14:03:02+00:00

Using a USB wireless wi-fi/bluetooth device which uses Realtek WLAN USB NDIS driver 37637. While I was out of town something went wrong and I came home to the blue screen do loop. System thread extension not handled. ttwlanu.sys failed. Went to windows10.com/stopcode, but I wasn't seeing any of the things mentioned there. I rebooted and started in safe mode, restored to February 3 (the last time I manually added software) when everything was running smoothly.

Now when I reboot I get a black screen and I am unable to start in safe mode. Please help!!!!!!

Hot sure if I am picking the right topic. I see at least four that seem like they could apply.

Windows for home | Windows 10 | Performance and system failures

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  1. Sumit 43,781 Reputation points Volunteer Moderator
    2018-03-01T14:43:07+00:00

    Was it a feature upgrade?

    When the update is offered, hide this update using the following troubleshooter tool:

    Download Windows 10 Updates Troubleshooter Tool from Microsoft

    http://download.microsoft.com/download/F/2/2/F2...

    Click on "Hide updates" option and you'll be able to hide desired update given in the list.

    4 people found this answer helpful.
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  2. Anonymous
    2018-02-27T14:09:35+00:00

    Ciao,

    I'm Ugo, a Microsoft Independent Advisor willing to help other Microsoft customers.

    Regarding your question, it looks like recent OS upgrades are causing issues, sometimese severe. So please try the below:

    1. PERFORM A SYSTEM RESTORE OR A STARTUP REPAIR

    a) Power on and off your computer three times. On the third time, your computer will boot into WinRE

    OR

    b) In Windows 10, select Start > Settings > Update & recovery > Recovery > under Advanced Startup, click Restart now.

    OR

    c) Boot to recovery media.

    OR

    d) You can configure a hardware recovery button (or button combination) to run a secondary boot path that includes WinRE. - https://msdn.microsoft.com/en-us/ie/dn898475(v=vs.94)

    THEN

    Follow the instructions below under "System Restore" or, if unable, under "Startup Repair":

    https://www.lifewire.com/advanced-startup-optio...

    1. GO BACK TO PREVIOUS WINDOWS VERSION

    If less than 10 days are elapsed from your upgrade, you can try the below under "Go back to your previous version of Windows"

    https://support.microsoft.com/en-us/help/12415/...

    1. If none of the above works, proceed with a clean install:

    DOWNLOAD OFFICIAL WINDOWS ISO FILES
    https://answers.microsoft.com/en-us/windows/for...

    PERFORM A CLEAN INSTALL
    https://www.howtogeek.com/224342/how-to-clean-i...

    If there are files on the drive you want to recover, see:
    https://answers.microsoft.com/en-us/windows/for...

    Please let me know if this helped somehow.

    Ciao
    Ugo

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  3. Anonymous
    2018-03-01T13:11:43+00:00

    Got to where I was able to reinstall a system image that was less than a month old, but then the update that caused the problem in the first place updated immediately and I had to go through the process again. I now have updates delayed. Is there a way to block a specific update until I get a response from the company responsible for the offending driver?

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  4. Sumit 43,781 Reputation points Volunteer Moderator
    2018-02-27T14:11:21+00:00

    Probably the BSOD and Blank screen are unrelated.

    The following steps outline the steps to fix Windows failing to boot and you can boot to the advanced startup options.

    http://www.yourwindowsguide.com/2017/05/fix-win...

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