Windows 10 time-delayed slowdown (lag) after the recent update - even after uninstalling the update

[ViktorrotkiV]

Hello,


I have encountered a strange bug in my Windows installation after the most recent update (KB5001649). This is what I know:

• after restarting, everything seems to work normal for a minute or so
• then the bug kicks in and I have problems like:
  • time-delayed hover effects (I move my mouse onto a button and the button highlight kicks in after half a second or so)
  • dragging windows has a similarily time-delayed problem, where the window will "follow" the cursor after I move it
  • using programs like VS Code and Firefox will slow down the machine up to a point where I cannot do anything at all, not even close the window
  • at the same time, when I go back to the desktop, everything seems to have the normal speed, clicking on the "Start" button will bring up the menu at normal speed
• these bugs will not show up in save mode
• I have already deinstalled the most recent updates (I cannot see their names now, as I am working in save mode but can name them if needs be)
• My specs are:
  • Windows 10 Education
  • Version: 2004
  • Build 19041.1
  • 64-bit, x64-based processor

I would be very thankful for any help but there is a restriction for me: I am currently working on my final thesis and I've built up quite a complicated setup that I really, really don't want to rebuild right now as I am very close to my deadline. Anything including resetting my machine to a point where I have to manually reinstall applications and programs would be very much a last resort for me...


Thanks in advance,

Viktor

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