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Piracy users try to restore normal skills after sp2 installed

  
        After Windows XP SP2 was introduced, many friends who installed the informal version of Windows XP could not successfully activate the system after installing sp2, and they could not enter the system after 30 days of trial. Even if sp2 was uninstalled, they had to reinstall the system.

To avoid unnecessary damage, can simply use a method to restore the system state sp1, without having to reinstall the system. But the first condition is to choose backup system restore when installing sp2. In this way, you can uninstall sp2 in safe
mode, then search for the wpaevents key value in the registry
and delete it.

Restart the system, select "Yes, I want to call the customer representative to activate Windows" when requesting activation, click "Next", enter the sequence provided by the customer representative in the third step in the AG. The 7 numbers in front of the number can be successfully returned to the sp1 state.
XP system basics
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