How to change SP2 to SP3 in XP By registry

1)           Open Run [windows key + R].

2)           Open Regedit

3)           Double click on “ HKEY_LOCAL_MACHINE ” .

4)           Double click on “ SYSTEM ” and then double click on  “CurrentControlSet ”.

5)           Double click on “Control ” and go to “Windows”.

6)           Then double click on CSD version on the right side [4^th option].

7)           If you are using windows xp service pack 2, change the value data into 300.

Now take you are my computer’s properties. You can see that the OS version has changed to service pack 3. Some software may support only from WinXp SP3. You can use these simple techniques for changing your windows xp version and you can escape from formatting.