Why does your computer restart without warning while you are on the internet?

1- This is because of viruses. A virus is a attached to your Iexplorer.exe. Attempt a clean scan using mcaffee or browse to housecall.antivirus.com that upbdates daily new virus definations and scan your system online 2- Delete all entries from autoexec.bat and config.sys if it contains... get these files from run by typing sysedit in start>run. Otherwise reinstall or update your Browser. Answer If you take off your start-up programs, it may help. On Windows XP go to the start button, run and type in msconfig. At the top of the window there are tabs choose the tab that says start-up. Uncheck everything it will not harm your computer. Click apply then ok. It will tell you to reboot your computer when it reboots a window will appear that states "You are using selective start-up" there is a box in the middle of the window that says "Do not show this messge again" click that. Good Luck! It may be due to the virus or any other malware in your computer ,

You can do one thing to get rid of this thing, try to download and intall any of the antivirus , update and scan your computer , its will remove virus from your computer . Solution: 1: Create restore point and take registry backup.

2: Delete all temp files.

3: Delete all unwanted software's and security software's from add/remove program.

4: Disable all unwanted services from startup and then remove from registry.

5: Reset internet explorer and then register all .dll files.

6: Scan with spyware removal,hijackthis and trojon removal.

7: Check Windows update if found and then download and install.

8: Restart the computer.