from the OS like ME or XP, or from the PC like Gateway etc? Mostly, sys res restores the registry and the added stuff is still there but not listed, especially in add/remove programs. Use this first, safe mode, to uninstall what caused the problem.
I need to use system restore but am not clear on how to choose a a restore point. If you select a restore point when something was installed, does the system go back to right before it was installed or does the program stay installed?