Recently my computer has started to reboot or completely shut down for no apparent reason. I've only noticed that the shutdown occurs if i log on and don't touch the computer for about 10min (for example if i log on then leave the room for 10 min when i come back in its completely turned off) however the reboots are unpredictable. The computer is old but we have never had any problems like this and it is definitely clean (no spyware,malware or viruses). The latest thing i have installed is the zone alarm firewall which may have something to do with it and also whether it is of relevance i keep getting a pop-up from winpatrol saying that autoexec.bat has been changed then after selecting anything being told it does not exist. I know there may be a possibility that the cpu is over heated and i have read about using a hoover/vacuum on reverse (sadly my hoover/vacuum doesn't do that
) to get rid of the dust but i don't want to risk damaging anything anyway.The only information i have about my computer is :
WinXP , version 2002 with Service Pack 2
VIA Samuel 2
701 MHZ and 112Mb RAM
Any help will be appreciated.