my pc randomly freezes up either when im working on it or when it is stood idle this is what i have done to solve the problem changed cmos battery changed hard drive and reinstalled windows run reg scan (reg machanic) run anti spyware 3 diff ones (avg, spyware dr,spybot search and destroy ) run avast anti virus and boot scan scan disc defrag removed nic card and gone wireless (as nic card was preventing windows from installing) gone on selective start up in ms config and raised virtual memory please can any one help im all out of ideas now Lorraine

Memory test http://memtest86.com/ There is a version to create a bootable floppy diskette and/or an ISO for creating a CD. Run it overnight and any failures are unacceptable. You could also run chkdsk /r This will check the disk for weak/bad sectors. Note that it takes quite a while to run. Check your temperatures. Look in the bios or download 'Speedfan'. Try swapping out the power supply.

ran chk disk every thing fine ran memtest no errors Lorraine

Check disk is not extensive enough to test the hard drive. Download the test software from the hard drive website for the one you have, if not sure then get the Hitachi Drive Fitness Test and run it. It will check over 90% of the drives and show whether there are errors or not. Richard

If you're running a set of 256Mb RAM chips and your display adapter is sucking up the usual 64Mb of RAM, then likely you're OS simply needs more RAM. Very cheap and easy to install, believe its $20 for 1Gb RAM chips set that snaps into the old RAM slot once you remove the OEM set. Just be real careful about handling the chipset as even your body's natural static electricity can destroy the chips whe you handle them. Regards and hap-e-trails, Steve Hopper

Hi Steve Thanx for that I have 512Mb RAM and a 32Mb RAM in there my pc is still freezing up i was playing music on it last night nothing else just the music and it sounded like the needle was stuck Alt Ctrl Del does not work nor the mouse i just have to switch off using the power button this will not be doing my system any good i seriously do not know what else to try the only thing i have not done yet is swopped the power supply i have a friend who keeps tellin me to do a repair install but i dont believe that will solve the problem as i put a new HD in and did a fresh install on it and had the same problems freezin up and the music like the needle was stuck now i have my old HD back in as master and the other one as a slave i have dvd rom dvd writer floppy drive no on board graphics so i gave a agp graphics card in it has its own fan cant remember off the top of my head what it is Lorraine

There a several reasons why your computer is freezing. First question is when was the last time you cleaned your registry. Having a corrupted registry can cause a whole host of errors and problems. Freezing up is one of them. If you have a lot of unnecessary registry keys that are hogging up your computer resources. Your computer is bound to choke. Scan your registry with a good registry cleaner. If you pull up more than 20 errors or duplication, clean your registry. 2. Depending on your RAM specs and your computer usage. This could also be a the issue. Having an insufficient amount of free space does not allow your RAM to function properly. If you are using a lot of RAM by net surfing or other activities without enough empty space your will get freezes. You don't need to buy new RAM but you should increase your free space by removing unnecessary data and perhaps increasing your virtual memory. The below link will show you how. 3. Spyware could be the culprit, so do a scan and see if your computer is infected. 4. That last area is a hardware drivers. This could be the problem if new hardware has been added to the system. So, the drivers should still be up to date. So try the first two suggestion and see if you can get your computer to stop freezing. Check your drivers. Hope this helps. http://www.delete-computer-history.... none