Blue screen: HTTP.sys error

Anonymous
2021-06-16T14:33:13+00:00

recently started getting blue screen error when running Visual Studio 2019 and IIS Express application

msinfo:

https://1drv.ms/u/s!AgLJxHDVN__BhSnnjqW37EXiiXZ8?e=uin5sb

minidumps:

https://1drv.ms/u/s!AgLJxHDVN__BhSjD62yp8R-oqm1X?e=hlhbWE

thanks

Windows for home | Windows 10 | Performance and system failures

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  1. Anonymous
    2021-06-24T13:22:23+00:00

    I have two different PC that were running perfectly well until a few weeks. Now when I debug and ASP.NET app on VS 2019 and I hit Ctrl-F5 it will at random cause a blue screen when I use Edge. So there is a bug in Http.sys

    Switching to Chrome for dev until this is fixed.

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  2. Anonymous
    2021-06-24T18:55:05+00:00

    I downloaded that http.sys file the other user mentioned renamed it to http_new.sys and updated my regedit to point that driver file instead and rebooted my computer. I have not blue screened since.

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  3. Anonymous
    2021-06-24T20:35:36+00:00

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  4. Anonymous
    2021-06-25T03:55:04+00:00

    Temporary workaround has been posted by Microsoft for this error here:

    http.sys blue screen when debugging a website - Visual Studio Feedback

    Please try the following as a workaround:

    1. Start the Windows Registry Editor.
    2. Navigate to the registry key HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\HTTP\Parameters.
    3. Add 2 new REG_DWORD values, EnableHttp2Tls and EnableHttp2Cleartext, to this registry key.
    4. Set both values to 0.
    5. Reboot the machine.

    This disables HTTP/2 on the machine, which appears to be what is causing the problems. You'll need to reverse these changes when a more permanent fix comes out. This has resolved the BSOD issue for me completely.

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  5. Anonymous
    2021-06-25T16:09:53+00:00

    We have implemented the workaround mentioned above and it seems to be working for us. Obviously disabling HTTP/2 is not an ideal fix. Hopefully MS will release an update on this soon? And does anyone know if a potential fix would be issued as a "patch Tuesday" style Windows update (out-of-band or otherwise), or would it come as a VS 2019 update?

    Is the http.sys file at issue part of Windows in general, or VS specific?

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