my computer keeps crashing and sometimes switches off why is this?

Answer 1

there could be several reasons including hardware problems. You can start with doing a complete format and reinstallation of windows on your computer.

Answer 2

Wilson Dava ... It could be for a variety of reasons. If your power supply is faulty or insufficient for all the equipment you've added, this can cause the crashes and shutdowns you've experienced.

It's also quite possible that you've contracted a virus or malicious software of some kind. Viruses can do these things, too.

Answer 3

I do protection for the desktops that connect without postpone with our servers for the dep. of protection and Alex nailed it, the two one among those 2 unfastened classes will do away with your small concern. in spite of the reality which you will acquire and setting up those classes, then replace them, and then in the past you test for issues... you could restart your computing gadget and press f8 while that is restarting to get you into secure mode, that's the only useful thank you to truly do away with a concern. additionally once you do end those issues, Open internet explorer and then click approaches on the better top hand of your demonstrate screen, then internet innovations, click your protection tab in there and then pick Reset All Zones To Default point, then press prepare, now press the privateness Tab and make effective your activate Pop Up blocker is checked, then prepare(in case you could) then ok. now you're sturdy. close internet explorer and Voila you would be great.

Answer 4

It could be something like a fault, or it could be a virus. Unplug it and clean out the case with the hoover (don't touch anything inside) just in case dust is blocking the fan. And you can check for malware yourself;

You may need to switch off System Restore as back up files may be hiding in there, and it will just restore itself. Go to Start - programs - accessories - system tools - system restore.
Run your anti virus and anti spyware in Safe Mode. To get into Safe Mode repeatedly press the F8 key after the bios screen loads but before Windows loads. You'll know if you made it because the screen will be at 800 x 600 and your pc will be slow.

Then beef up your security. Its easier to prevent malware getting on to your sytem in the first place rather than trying to remove it. All the following programs are free for home use;

You need to install one firewall.
The Windows firewall doesn't stop malware on your pc from dialling out.
http://www.zonelabs.com Zone Alarm firewall OR
http://www.comodogroup.com/ - Comodo firewall.

You need to install one anti virus;
http://free.grisoft.com/freeweb.php/doc/2/ -AVG anti virus or
http://www.avast.com - Avast Antivirus

You need all three anti spyware programs;
http://www.ewido.net - AVG(Ewido) anti trojan.
http://www.lavasoft.com - Ad-Aware SE Personal anti adware
http://www.safer-networking.org - Spybot Search and Destroy anti spyware. Use the Teatimer settings to protect Internet Explorer, and the Immuniser to stop malware getting on your pc.
Also use Microsoft Defender and their online scans.

And these are useful utilities;
http://www.mozilla.com/ - Firefox web browser.
http://www.ccleaner.com - Cr*pcleaner Registry cleaner and privacy tool
Winpatrol is a handy utility that manages cookies on your pc and stops unwanted changes to your startup folder.
http://www.winpatrol.com
Spywareblaster works with Internet Explorer and Firefox. It won't uninstall spyware that is already on your pc, but it will prevent hijacks and other malicious changes to your browser.
http://www.javacoolsoftware.com
http://www.siteadvisor.com -MacAffee Site Advisor warns about malware on sites you are about to

Remember to update and run all of you anti malware programs at least once a week.

Answer 5

Most probably a virus. Go to a technical forum. They will ask you for details of your system probably using some software. Once you've posted your details someone will give you details of what's wrong and how to fit it.

Answer 6

You might have a virus or your computer needs looking at.

Answer 7

Could be a virus