How to Convert (Change) your XP service pack 2 to 3 without installation
Now days most of the softwares and New games don't run on XP Service pack 2 so, here is the superway to change windows XP service pack 2 to service pack 3 without any installationor formating.
go to start---->Run--> type the word Regedit
1- Your windows Registry Editor will open,
2- Go to HKEY_LOCAL_MACHINE\SYSTEM\ CurrentControlSet\ Control\ Windows
3-Than please modify “CSDVersion” from “0×00000200” (SP2) to the Windows XP SP3 value of “0×00000300” and than reboot your system.
Now your Window has been upgraded to SP3 and you will be able to installed various advance softwares.
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