How Can I Stop My Pc Randomly Rebooting?

Question

When I Play Some Games It Reboots The PC.

OS: Windows XP

Game: Most Full Screen Games

How Can I Stop It?

Update:

it works in windowed mode more but it still randomly reboots

Update 2:

also I cant use anti virus because it wont install

Answer 1

Favorite Answer

it's either hardware (overheating etc) or software (corrupt os/virus)

hardware - check fans/vents/psu for excessive dust

scan for virus (use malwarebytes (free not trial)

check system files - open cmd.exe with admin privileges - type (including the space) sfc /scannow and hit enter - check the report at the end or cbs log

Answer 2

Make sure you pc can handle the game's/

Also change the auto run's if you know what you are doing.

Also try using this for a quick malware check.

http://www.malwarebytes.org/