subject: Troubleshooting Error 80004002 - How to Fix Windows Vista Update Error Code 0x80004002 Easily [print this page] Application and runtime errors are common on any computer. The bothersome windows vista update error code 0x80004002 appears sometimes, and it makes the user upset. It comes with the message "Windows could not search for new updates", and it is easy to resolve if you understand why it happens.
The update error code 0x80004002 is a common COM error which is related to the E_NOINTERFACE. The error pops up because the DLL config of COM components are corrupted and not registered correctly, and there are some DLL files are missing. This is why Windows Update could not identify the interfaces. And sometimes the error may come up with this format: "Com Error: code 80004002 No such interface support". It's not very hard to get this error away, and here are some tips to fix this update error and re-register your missing DLLs for Windows Update.
Before starting the process, you should check your firewall first. It is quite common that user's firewall blocks the connection of Windows Update, so it could not return any new update and the error code 0x80004002 occurs. After checking your firewall settings to allow updating, then you should check the necessary DLL files for updating. Click on Start-Run and type "cmd", then check the listing DLL files at each command line.
regsvr32 wuapi.dll
regsvr32 wuaueng.dll
regsvr32 wuaueng1.dll
regsvr32 wucltui.dll
regsvr32 wups.dll
regsvr32 wups2.dll
regsvr32 wuweb.dll
After checking these files you will know which DLL file is missing for Windows Update, and download the missing one. If this process does not work, you should turn off UAC and try again. If this error still persists, you should update your antivirus system, because these DLL files may be deleted under virus or malware attack from time to time.
The recommended solution is to use a professional registry repair software, because using this kind of tool you don't need to learn what are registry and DLL and how they work to cause this error code 0x80004002. You don't need to try different solutions again and again to fix this bothersome error, but fix it by a simple scan and repair process, then have more time to enjoy your life.
Troubleshooting Error 80004002 - How to Fix Windows Vista Update Error Code 0x80004002 Easily
