Based on your description, this is a software problem - Windows issue, Windows update or drivers. Drivers could be for hardware, could be software ones (like security ones).
Windows is not a living organism, so things don't change on their own (still no AI in it). So this means that something happens which causes the problem - software installation, software update, driver update, Windows update and whatever happens causes some problem or incompatibility.
Use Windows 10 2004 or 20H2 only
If you use Windows 10 Pro , use group policies (gpedit.msc) to limit what gets installed, you can stop driver installation from Windows Updates. stop automatic updates, install updates at once only.
Do not use 3rd security apps on at least one-two of the PCs to see how it goes.
Use HP Image Assistant to download/install all HP drivers, software, ESU, etc and do it once right after Windows is installed.
Activate Windows System Restore- and often create restore points and before any change, so that you are able to revert back.
and like that... you will be able to find what causes the issue
Hope this helps you.
>> Your FEEDBACK is important. Click below on Accept As Solution or ThumbUp+ buttons if my comments helped or to say thanks << *** I work for HP *** I express personal opinion only *** HP Expert - Volunteer since 2013
Be alert for scammers posting fake support phone numbers and/or email addresses on the community. If you think you have received a fake HP Support message, please report it to us by clicking on "Flag Post".