Here's the issue and hopefully all the required information.
I had installed norton internet security 2012 and all was fine. Last week I updated the product from the norton website as had a prompt that there was an updated version I could obtain.
Since then the computer wouldn't start, I couldn't uninstall and I had to restore to an earlier point. After much effort I managed to uninstall the product, then re-installed from the disc. Since then the computer just won't boot up. It gets as far as trying to start, I get the microsoft name at the bottom of the screen, but it just won't boot up. It did go to blue screen once.
I am using Windows Vista, Toshiba laptop, NORTON Internet Security 2012.
I am now trying safemode but to be honest I'm out of my depth.
Any assistance very bratefully received.........THANKS