http://support.microsoft.com/?kbid=302796
Troubleshooting System Restore in Windows XP
System Restore FAQ:
http://www.microsoft.com/technet/tr...=/technet/itcommunity/Newsgroups/FAQSRWXP.asp
or
http://tinyurl.com/28b4
http://support.microsoft.com/default.aspx?scid=kb;en-us;283096
Improper Shutdown May Affect System Restore
or
"Cannot restore the computer to an earlier restore point, no changes have been
made to your computer" pops up, try the procedure listed below to restore its
functionality. NB - All system restore points will be removed.
Right click [My Computer] [Properties] then click on System Restore tab.
Put a check in the box for Disable Restore on all drives.
Click apply, then Reboot your PC.
After the system reboots, navigate to the System Restore tab and turn it back
on. Click apply.
Once System Restore has been turned back on, the computer needs to be rebooted
again so that System Restore can create a new point (although a manual point can
be created, by navigating to [System Tools] [Restore...] and choose [Create a
Restore Point] and then providing a name for the new restore point).
If you decide not to do the 2nd reboot this will result in the next Point being
created 'within the next 24 hours'.
Check your System Restore to see if the new restore point has been created.