Written by Your PC Matters | 16 February 2010
Posted in Security

When installing Windows Defender on a new XP system you might receive an error code 80004002 after trying to update the program. We have found a solution to this error code by following these steps. Register the Windows Update DLLs by executing the REGSVR32 command, followed by the name of the DLL to register. Register/re-register all of these:

• wuapi.dll
• wuaueng.dll
• wucltux.dll
• wups.dll
• wups2.dll
• wuwebv.dll

After registering the DLLs above you should be able to successfully update Windows Defender.