My PC restarts itself immediately after I log in.?
958543
you said "the problem happens in both of them"\n\nthis means you have a hardware problem. Since it happens in games, it could be the power supply.  Download MBM5 and watch your power fluctuations (although if it was me I would just swap in a different power supply and see if it fixes it.).  \n\nIt can also be an overheating or underpowered graphics card - some cards require their own power source aside from the motherboard slot they plug into so make sure your has a power plug if it needs it.  And its common for graphic card cooling fans to crap out. Check to make sure the fans are all spinning when the computer is on.\n\nIt could also be bad memory - try Memtest86 to check out your memory.\nAn internet search will find you this tool, also mbm5.\n\nThis problem is not a virus or software since it happens in both linux and windoze.
787668
might be some sort of virus.\n(If u download something, then also it restarts)\n\nTry scan your computer with good antivirus program.\nNorton / McAfee / SpyBot\n\nGoodLuck
1157596
check for viruses (specially when your system booting after connect to internet ) \ncheck power voltage \ncheck  cpu fan \nreinstall win xp \nif cpu fan is good
911645
If Windows XP suddenly starts without warning, or restarts when you try to shut it down, it may be because your operating system is set to automatically restart when certain system errors occur. This feature of the Windows XP operating system can be disabled. Use the information below to disable the Automatically Restart option. \n\nResolve this issue by turning of the Automatically Restart option: \n\n1. Click Start, right-click My Computer and click Properties. \n2. Click the Advanced tab and select Settings in the Startup & Recovery section. \n3. Remove the check mark next to Automatically Restart under System Failure. \n4. Click OK to close the Startup and Recovery window and click OK to close the System Properties window. \n5. Restart the PC.\n\nThe PC will no longer restart automatically when a problem occurs. Instead a blue screen appears with more useful information. You can now search for a resolution using the text from the error.\n\nAfter you perform the above steps, check if the issue persists in "safe mode with Networking", scan for virus, get the BIOS update from the manufacturer.
767548
Have you got any anti virus stuff?\n\nTry rebooting your computer.
729787
Sound like your computer is running in the (safety mode) Try running your antivirus software to check for viruses as something is putting it in the safty mode.
936973
Sounds like your processor is over heating...that will definitely shut down your computer.
63104
I asked this same question about a week ago, Ill give you alist of answers that i got,THAT MAY BE HELPFUL..could be...SASSER VIRUS[causes it to restart] try REFORMATTING AND REINSTALL WINDOWS, OVERHEATING HARDWARE,MOTHERBOARD,BAD RAM .Guess ill wind up having a comp. tech.to check it out .IF i find out before u do,ill let you know,or if you find out the problem, plz,let me know any info.GOOD LUCK WE NEED IT.
47641
Check your start up programs.\nSTART > RUN > type MSCONFIG > STARTUP uncheck things you really do not started at Boot up.
1148876
It is possibly overheating. Check the fan. Check power supply, it could be going out. If not:\nYou probably need to reorder your BIOS by hitting del on startup. If you dont know how to do this please dont try, get help first.\nHere is a search of this problem, choose one of these forums that seems most similar to your system and ask them. They should be able to help. Its hard to troubleshoot a problem on Yahoo Answers as we cannot easily have continuous dialogue.\n\nGood Luck!\nhttp://www.google.com/search?hl=en&q=computer+restarting+over+and+over
658450
your pc is over heating that is why it is rebooting itslef and in due course it is damaging your software...\n\nIn short u have a hardware problem.\n\nwhat u must do ?\n\n1)check the temperature of your pc.\n2)check your fans.\n\nu must call a hardware expert and must install your OS again.
871850
click on start same as you did to go to safe mode then click restart computer and it will go back to normal running.
639810
You need to check that particular computer and make sure it is set to "shut down" and not set to "reboot".  That  will probably solve your problem.
781545
Restart the machine.\n\nIf it stills boots into safe mode, restart again and hit F8 a few times.  This will bring up the boot menu.  Select Normal
69454
If you have some kind of antivirus or antispy software. I would suggest you run a scan. You could have something corrupting your pc. If you don't have protection, i suggest you get some.
739057
Can you rollback your system state? I would try that first.\nAssuming you are using win xp
112432
press ctrl alt delete simultaneously ur pc will restart