Catty
This is the best route to System Restore on XP I am working in that area today to correct a bug myself

On the Start menu Locate it by going: Accessories>System Tools> System Restore (Bottom of Menu)
Ok Assuming you are now there you see a calendar. Click on any of the Highlighted dates these are the dates where the restore points exist and give some details about what was installed or uninstalled Doesn't list everything

(bear that in mind) Anything relating to Microsoft
is listed
How far back can you go on the list? The answer may vary, I'd say on average 6 weeks depending how much space has been allocated
by the Windows Setup on Installing XP
2 tips:
If you are trying to get a bad program or file off the computer delete it first then Do the System restore ...I am in that situation with a MS update which has Locked my computer up from updating

Some times it will only try to refresh the file Not delete the file

(End up going round in circles!


)
Tip 2 If you can exit all the programs by the clock

(Like if you are doing a Defrag?)
Now press the Next button to start
The Restore takes 5 to 10 minutes to complete then restarts the computer.
When you log back on, you'll get a message to say if the Job was carried out successfully or Not.
If the failure Notice shows find an earlier date (but remember the 6 week or so limit OK?)
Do it a date backwards at a time
