I was installing XP alongside Win98 as a dual-boot system. Both OS were working fine. I downloaded OpticPro_600p.zip from Driverguide to install my parallel port scanner Plustek OpticPro 4831p. The installation went smoothly and required rebooting. After rebooting I have been unable to run any program - I get the message 'X is not a valid win32 application' including notepad, msconfig etc. When I tried to shut down, it said 'You do not have permission to shut down this computer'. I had set it up as a single user with no log-on screen, with no password, as no-one else uses my computer. Also had system restore turned off! I scanned the OpticPro_600p.zip file with AVG free from my Win98 partition and it was clear. I rebooted XP in safe mode and uninstalled the scanner driver but still have the same problem. I can run some programs in safe mode. Any idea as to how I can retrieve my XP installation?
This might help; click here and/or click here (Specifically the .bat file on that page) "You can download a BAT file (zipped) that will restore all of the "default" associations that XP ships with. It will not restore those file associations created by 3rd party applications. "
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