Windows 10: Weird PC Behaviour Since Upgrading to 20H2

Discus and support Weird PC Behaviour Since Upgrading to 20H2 in Windows 10 Support to solve the problem; I'm having a little problem since upgrading to 20H2. My PC will suddenly go "dark". The screen turns black and the keyboard lights go out and it is... Discussion in 'Windows 10 Support' started by Gurn Blanston, Dec 11, 2020.

  1. Weird PC Behaviour Since Upgrading to 20H2


    I'm having a little problem since upgrading to 20H2. My PC will suddenly go "dark". The screen turns black and the keyboard lights go out and it is totally unresponsive. The case and power lights stay on, but that is it. Almost all USB devices go dark. The only thing I can do is reboot. This has happened four times since upgrading.

    I have checked the event viewer and can find nothing. I can see the reboot, but nothing else from the time it went dark.

    Reliability Monitor shows an unexpected shutdown and reboot, but no reason why.

    Other than a hardware problem or a bad PSU, I can't think of anything other than the Windows upgrade, but checking the known issues doesn't show the problem there either.

    Has anyone else had this problem since upgrading?

    And does anyone have any advice on troubleshooting the problem? The build is only six months old.

    :)
     
    Gurn Blanston, Dec 11, 2020
    #1
  2. Simon_IK Win User

    Weird behaviour after clean start

    Hey,

    I've been having issues with Win10pc - v. high memory usage and unresponsive for 10 mins after waking up - so I ran the Memory
    Diagnostic Tool
    from this site and then followed the Clean Boot instructions it contains.

    I now have some weird behaviour:

    • My PC won't accept keyboard input into the Win10 Search bar or MS Edge but other browsers, apps and MS Office suite work fine.
    • MS Word/Excel started as usual but when I tried to start Outlook it didn't show the UI for about 10-15 mins.
    I have re-started PC a couple of times with no errors.

    Grateful for any help in diagnosing.
     
    Simon_IK, Dec 11, 2020
    #2
  3. CadErik Win User
    20H2 and Firewire/Audio issues

    I have a MOTU Ultralike MK3 which I have connected through Firewire on my desktop.

    My specs:

    • ASRock B450M-HDV R4.0 Motherboard
    • AMD 3800X
    • 32 Gb DDR4
    • Vantec PCIe Firewire interface with Ti chipset

    Before my upgrade to 20H2 - my playback was quite stable but since this upgrade, I'm getting a bunch of weird playback glitches. That is not even under load. I just play a file in JRMC with the ASIO interface and I get multiple drop-outs glitches. The playback
    definitely stops for 1 sec or so, there is no level showing up anymore during that second on my audio interface.

    I changed two times already the firewire cable, and the firewire card as well.

    My bios doesn't have a lot of options and I have the legacy 1394 driver installed which used to work quite nicely.

    Any suggestions?
     
    CadErik, Dec 11, 2020
    #3
  4. Phillmont Win User

    Weird PC Behaviour Since Upgrading to 20H2

    Hibernating laptop changes to sleep behaviour after Windows 10 May 2019 update

    Hi Aditya,

    Thank you for your reply. I have tried the two steps (turning of Hybrid sleep and Fast startup) you suggested but to no avail. Okay, for your two questions:

    1. My laptop is a HP Pavilion 14-bf101tx, and currently running Windows 10 1903 (upgrading from 1809).
    2. Nope. No error messages. I suppose the boot process was successful, however, my battery was reduced. That's why I suggest the post title as "Hibernating changes to sleep behaviour" because the battery level reduction looks like sleep behaviour.

    Please inform me of any diagnostics information you might need. Thank you for your kind assistance.
     
    Phillmont, Dec 11, 2020
    #4
Thema:

Weird PC Behaviour Since Upgrading to 20H2

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