this post was submitted on 21 May 2026
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PC randomly restarts out of nowhere (sh.itjust.works)
submitted 6 hours ago* (last edited 1 hour ago) by HerbalGamer@sh.itjust.works to c/pcmasterrace@lemmy.world
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As title suggests.
Coming home the other day I find my PC started to restart out of nowhere, with no warning before or errors afterwards. I haven't changed anything and haven't had this problem before.

Any suggestions on what to do?

Device specs:
Processor Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz 3.60 GHz
Installed RAM 64.0 GB
Storage 233 GB HDD ST9250315AS, 112 GB SSD OCZ-VERTEX2, 466 GB SSD Samsung SSD 970 EVO Plus 500GB
Graphics Card NVIDIA GeForce RTX 3060 (12 GB)
System Type 64-bit operating system, x64-based processor
OS Windows 10

UPDATE: Memtest got through 2 out of 4 passes in under 4 hours before I got fed up with waiting, which in itself seems a good sign since it didn't restart there.
Event viewer showed one odd Event: The process C:\WINDOWS\Explorer.EXE (ANDROID-17) has initiated the restart of computer ANDROID-17 on behalf of user ANDROID-17\smuld for the following reason: Anderer Grund (geplant) Reason Code: 0x80000000 Shut-down Type: restart Comment:

No idea why because automatic restart is disabled.

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[–] 9point6@lemmy.world 2 points 6 hours ago

Ah there goes my idea, I thought it was gonna be down to Microsoft's inability to not fuck sleep up every couple of years

Memory is probably the next port of call if you don't see anything in event viewer to indicate a driver issue.

Another commenter suggested memtest which is a good shout, might be also worth putting a Linux distro onto a flash drive or partition and try running that for a couple of days to see if it does it under Linux, that will at least help inform you as to whether it's hardware or software