|Tell us the make and model of your brand name system, or if you have a generic desktop system, the make and model, or at least the model, of your motherboard.|
It shuts down when you're doing something specific online, or does it do it randomly ?
Computers DO NOT normally shut down and stay off, but they can Restart for no apparent reason.
If it DOES shut down and stay off, that can be caused by
- you have a laptop or netbook computer and are not using the AC adapter and the battery has been depleted to the point that it must be recharged in order to run the computer on it's own. In that case, the computer will not start up and run normally until the battery has at least a minimal charge when the AC adapter is not connected.
- the cpu (processor) is overheating. In that case the computer will NOT start up again until the cpu has cooled some. The operating system may do oddball things not long before the mboard shuts off..
- for a desktop computer, possibly, the power supply is failing
- unlikely but possible - the mboard is defective and/or has failing or failed capacitors
If the computer Restarts for no apparent reason.......
if you're getting a memory dump message, you're probably also getting a STOP error.
If Windows works fine at least part of the time.....
Win XP is set by default to automatically reboot when it encounters an unrecoverable error.
To have XP possibly display an error message you can investigate instead of the computer rebooting:
1. Click Start, and then right-click My Computer.
2. Click Properties.
3. Click the Advanced tab, and then click Settings under Startup and Recovery.
4. Under System failure, click on the small box beside Automatically restart to remove the checkmark.
5. Click OK, and then click OK.
If you then get an error message, look at all of it's details.
- Quote the STOP: 0Xx0000xx error (we don't need the stuff in brackets to the right of that)
- If a problem file is named, quote the name of it.
- If the text mentions a minidump file was made, that file can be analyzed.
E.g. search for WhoCrashed on the web, download it, run it.
If Windows will not work for long enough for you to do that ....
Remove any bootable disks in drives.
Press F8 repeatedly while booting, don't hold down the key, and when the Windows loading choices menu appears, choose
Disable automatic restart.....
Some computers have a different use for pressing the F8 key while booting, e.g. for a menu where you can choose a device to boot the computer with.
If you see that,, read the text on the screen to find the key that exits that menu, press that key, then immediately repeatedly press F8 to get the Windows loading choices menu.