Windows 10: Freezes every x hours / minutes with unknown cause.

Hi, the last couple of months / weeks, I am having some weird issues with my pc. I don't know what the cause of it is, but sometimes my pc just becomes very slow / freezes typing & mouse moving stops for a couple of seconds and then recovers. I would love to say: "I have tried these x things" but I just don't know how I would go about diagnosing this issue. Does someone maybe know what I can look at / try?I have tried to see if there are any weird processes running, but I don't really know what to look for to be honest.

:)

 

Windows 10 Freezes if I leave it for 20 minutes


I'm getting a very strange issue. I can work on my computer for many hours without any issues. But, if I step away for 20 minutes and come back, it's completely frozen and I have to hard reboot. To see if this is a problem with the sleep or hybrrid sleep functions, I disabled them all. Everything is set to NEVER shut off. But the freezing still happens if I walk away. Otherwise, no freezes.

So, what could be causing this freeze? Any idea?

 

Borderlands freezes and thaws

I'm positive the steps I took above fixed it. I went through 10 rounds in the underdome (well over an hour of gameplay) without a single freeze. Previously, I couldn't play 15 minutes without at least one freeze.

 

Windows 7 freezes for 1 minute

My custom built rig has lately, in the past 2 months or so, been having these spits of freezing. It will freeze for exactly 1 minute: always 1 minute, every time. I can time it down to the second.

The weird thing is that when it freezes, some programs seem to be immune to it. When playing a full screen game, video and audio will freeze (though not always at the same time, sometimes one or the other will lag). Playing a 3D game in windowed mode seems to be immune to it however. Windows explorer and Firefox always seems to freeze, but Windows Messenger (including video call) will work as normal even while everything else is frozen. After a minute has passed, everything is back to normal. It happens at irregular intervals: sometimes it will happen then happen again 30 seconds later, and sometimes I can go hours without the problem.

It's a bit bizarre and I'm not sure what is causing it. The fact that it is always exactly 1 minute makes me think it's some dumb program checking for an update or something, but I can't pin it down.

Any ideas appreciated.