Hi, my computer (not the one i am using now)  has completely frozen. I cannot use anything.
It keeps telling me 'Windows explorer is restarting' but it doesnt work. ive tried to run malwarebites through safe mode networking and this has not worked.

it's Windows Vista with up to date Norton (i cannot use) service pack 2.

Any advice on what i can do would be appreciated.

Many thanks

SamanthaI know it is heartless to say, but if it were me I would boot to safe mode, pull whatever files I could save, and then bail out and reinstall the OS from scratch.  It might take a few hours of reinstalling everything, but that's pretty much GUARANTEED to get things working again. 

Running a virus scan in safe mode, as well as Malwarebytes is the best idea and normally cures things, so if you tried these and had not luck, you also need to consider how much time and effort you will waste trying to fix it compared to what time it would take to clear your hard drive and reinstall your Windows copy.  You'd probably kick into action whatever was holding you off of SP2, which would make things safer for you in the future.  Service packs are security updates AMONG other things.Hi Samantha,

Here are a couple of options you may wish to try before you do a 'clean install' of vista. If you can access safe mode in your PC http://windows.microsoft.com/en-US/windows-vista/Start-your-computer-in-safe-mode try to restore your system to a time before you had issues with it. If that doesn't work you may wish to try a 'repair install' of vista which should protect your current install and settings http://answers.microsoft.com/en-us/windows/forum/windows_vista-performance/windows-explorer-has-stopped-working-windows-is/8607105e-5ff5-4b3a-8591-a9258798ff75

The following link also GIVES some information on possible causes to the problem: http://support.microsoft.com/kb/937093 If you are successful and manage to get back into your desktop I recommend you run a full system scan for viruses. I must confess I am not a fan of Norton although it has improved over the years. I would recommend you consider AVAST. There is a free and paid version available. I hope this info helps resolve your problem. Please let me know if it helps. 
Quote from: sammyjo2611 on March 12, 2012, 12:40:26 PM

it's Windows Vista with up to date Norton (i cannot use) service pack 2.