Unable to log on because the license failed after xp sp3 upgrade

The system was originally installed on computer company ghost 8.5, XP SP2 (9.0 is SP3), and Sp3 was automatically installed last night. When you started the login today, a problem was prompted to prevent license verification. I tried a lot of methods, but I thought it was definitely a problem with the serial number after SP3 was installed. The solution was to uninstall SP3, but now I cannot enter the security mode, the system will be automatically logged out immediately after login, Which is troublesome. Finally, we tried a method: use the safe mode with command line. After login, the system will automatically start CMD and enter explorer in it, you can start the resource manager, so you only need to find the SP3 unmount file.

We know that every time the SP patch file is installed under c: \ windows \, there will usually be a lot of blue (NTFs compression), looks like $ uninstall ...... Such folders can be deleted if the disk C space is limited, but they can be kept if it is sufficient. Just in case, at least Delete the folder after confirmation, and install SP3 in: C: \ windows \ $ ntservicepackuninstall $ \. You cannot see this folder in safe mode. You can enter this address in the address bar and press enter to open it. Go to spuninst and run:

C: \ windows \ $ ntservicepackuninstall $ \ spuninst \ spuninst.exe can be uninstalled. restart the system in a few minutes to return to the sp2 era, you can also use version 9.0 of ghostto install SP3. Now the installation is fast... The following is the error log that I checked in the Event Viewer after modification. It should be the logon authentication error.

 

Event Type: Error
Event Source: Windows product activation
Event Type: None
Event ID: 1000
Date:
Event: 21:31:04
User: N/
COMPUTER: JSJ-NOTEBOOK01
Description:
The wizard has an error checking the current Windows product license. Error code: 0x80070002

For more information, see Help and Support Center in http://go.microsoft.com/fwlink/events.asp.