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I'm currently debugging a small problem in a software that happened when the Computer froze for a moment (I was rummaging around, deleting files etc. and the OS just froze momentarily).

I am now trying to freeze the Computer intentionally for a second or so, but it's harder than I thought. Just hogging the CPU with a bunch of hard-working threads doesn't do it as the OS obviously still handles the scheduling fine.

Can someone name a way to induce such a system-wide short freeze of all OS activity? Is there a specific resource I can hog in a software or combination thereof?

It's quite hard to google, as anyone is trying to solve something like that, not induce it. :-)

OS is Windows 10 Pro, 64 bit.

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  • I would focus more on trying to resolve the issue, via Windows updates and driver updates. I would also run a memtest86.com on your RAM and maybe Prime95 on your CPU to soak-test it. Commented Jun 25, 2021 at 13:44
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    Look in Resource Monitor (Security and Maintenance) and see what Stopped Working errors you have. Commented Jun 25, 2021 at 13:46
  • "system freeze" is quite a vague thing (more like a symptom / observation). Commented Jun 25, 2021 at 13:51
  • The fact that Windows froze for a moment is not the problem. I am trying to diagnose the behavior of a running program of mine while that short freeze occured and therefore want to reproduce it. @TomYan true. It's hard to describe more clearly than a short hiccup that happens sometimes. I guess the OS doesn't allocate cpu time to the process. If I knew why, I couldtry to replicate that.that's the Question. I could try a forkbomb but I can't recover from that ;-) Commented Jun 25, 2021 at 14:01
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    Did you try Reliability History? Commented Jun 25, 2021 at 14:38

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Instead of freezing the whole system I reverted to suspending the individual process by suspending the processes threads for short periods of time in order to simulate the system freezing for a moment.

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