Cannot+restore+to+SP2+after+using+an+SP1+Restore

If you have restored your computer to a restore point when XP with Service Pack 1 was installed and then you want to restore to a later restore point that was made after SP2 was installed – Sadly if you try to do so, you will find that you are still stuck with XP SP1.
 * Cannot restore XP SP2 after using an XP SP1 Restore Point **

Fortunately there is a fix for this one. You'll find it in KB article 835409 at :- []