Fix common Windows XP errors with portable XP Quick Fix Plus
Programs like XP Quick Fix Plus. The tiny, portable application launches a dashboard with one-click fixes for 40 common Windows XP problems. Quick Fix makes short work of irksome situations like a disabled task manager, missing Device Manager tab, and the infamous CD/DVD missing/not reading bug.
The program is essentially a collection of registry fixes, since that's where most of these problems originate. You might want to create a system restore point prior to running Quick Fix (or backing up your registry) just in case.
XP Quick Fix is a free, portable download and - not surprisingly - runs on Windows XP systems.