HOW TO CHANGE SP2 TO SP3

Some programmes require XP SP3 before it can be install on ur pc. also some games need sp3 before you can install .

Step 1. Run Regedit by clicking on start -Run, type regedit and press enter.

2.Browse to
HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/control/windows

3.Modify the value of CSDVersion from "0x00000200"(SP2) tothe windows XP SP3
value of 0x00000300

4.Close registry editor

5.Reboot and install whatever you want on your pc