Solution to update failure after XP is installed with SP3 (installation fails after XP is automatically updated and downloaded)

XP cannot be updated after SP3 is installed
Register wups2.dll in Windows
To register the wups2.dll file in windows, follow these steps:
1. Stop the automatic update service. To do this, follow these steps:
A. Click Start and run, type cmd, and click OK ".
B. at the command prompt, type the following command and press Enter: net stop wuauserv

2. register the wups2.dll file. To do this, follow these steps:
A. at the command prompt, type the following command and press Enter: regsvr32 % WINDIR % \ system32 \ wups2.dll
Note: For computers running Windows XP Professional x64 Edition,
Enter the following command and press Enter: regsvr32 % WinDir % \ syswow64 \ wups2.dll
B. Click "OK" on each verification message received"

3. Start the automatic update service.
To do this, enter the following command at the command prompt and press Enter: Net start wuauserv
4. Exit the Command Prompt window.
To do this, type Net start rtcsrv, and then press Enter.