Although This Discussion Is From 4 Years Ago
...in your particular situation, the problem may be related to malware, or simply a conflict with various software on the computer.. Prior to installing a service pack on Vista, especially SP1, it was important to visit the Windows Update site and install the updates listed there.. And although not generally recommended for any other situation, it was important to check the Windows Update site for any drivers that might need to be updated also.. Once identified, DON'T use the Windows Updates drivers listed, if possible, but visit the driver manufacturer's website and download, then install their latest drivers for the needed devices.
Unfortunately, since you can no longer get the computer to boot, I see no other option than to perform and clean reinstall of the operating system.. If your Dell has a recovery partition, I'd use that, or recovery discs will work as well. Once the full recovery is performed, you should be able to use your backups to reinstall personal programs and files to the machine. You can then move forward to update to the newest service pack..
Hope this helps.
Was this reply helpful? (0) (0)