WINDOWS UPDATE SERVICE(wuauserv) disappeared....how to reinstall ?

[asimwajid]

Hello......the problem iam facing is WINDOWS UPDATE SERVICE(wuauserv)
is gone....its no longer even showing up in services manager....any
way to reinstall it ? iam using Vista Ultimate btw.....thanks

 

[dean-dean]

Run the System File Checker. To do this, right click on Command
Prompt (Start Menu\Programs\Accessories), and choose
Run as Administrator. Copy the following, and Paste it after the prompt:

sfc /scannow

Press Enter. It will scan all your system files. It may take a few
minutes. If things are okay, you are given the text message "Windows
Resource Protection did not find any integrity violations".

 

[dean-dean]

You could try this:

Right-click Command Prompt (in Start Menu\Programs\Accessories) and choose
Run as Administrator. Type (or Copy and Paste) the following commands,
pressing Enter after each one:

regsvr32 wuapi.dll

regsvr32 wuaueng.dll

regsvr32 wups.dll

regsvr32 wups2.dll

regsvr32 wuwebv.dll

regsvr32 wucltux.dll

Close Command Prompt, and try Windows Update again.

 

[dean-dean]

it appears to be an "Access Denied" error. Did your right-click on Command
Prompt, and choose Run as Administrator? There was an attempt to write to
the registry when you ran the command, but the privileges to do so weren't
there, so the command was blocked.

Wuaueng.dll is the Windows Update agent, AKA wuauserv, AKA the Service
called Windows Update.

 

[dean-dean]

Before the upgrade re-install, you could try creating a new administrative
account, if only temporarily (it can be deleted after the test), and see if
Windows Update works from the new account, or if the command will work.
Another thought is to run the command in Safe Mode (although Windows Update
won't work in Safe Mode).