Hello,

My PC always hang and sometimes restarts on its own. What could be its problem?
Thanks.

Dani AI

Generated

— random hangs and reboots can come from several places: failing power, bad RAM, overheating, driver faults, or disk errors. asking for hardware details and encouraging diagnostic logging are the right direction. Below are targeted, low-risk checks that will quickly narrow the root cause.

  • Prevent instant reboots so you can read a stop code and capture dumps; Microsoft explains how to disable automatic restart after a system failure ().
  • Test RAM from a bootable stick using MemTest86 and let at least one full pass finish; any errors point to bad DIMMs or slots.
  • Check HDD/SSD SMART health with CrystalDiskInfo for reallocated/pending sectors.
  • Monitor temps and voltages with HWMonitor while doing a short stress or multimedia run; look for overheating or unstable rails.
  • If tests are inconclusive, try a Linux live-USB: if it still hangs, suspect hardware. If comfortable, test with minimal parts or swap the PSU with a known-good unit.

When you post results, include the BSOD stop code (or dump), memtest output, PSU model/age, RAM type and size, and whether the fault happens cold or after warm-up. That info will let people here give precise next steps.

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What are your computer specs please.
List what RAM you have, CPU, PSU, gfx card.
Hva you ran an antivirus scanner recently to clear your computer of nasties?

You should try to recreate the hanging or the restart and post what is that you did to get it. Also look at your event viewer to see if there are any warnings or error reports. It is in the administrative tools. (XP/2k/vista not 98/95)

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