Solving error 8024402c for Windows Update

So far, many times I’ve found this strange error in Windows Update center stating that “Windows could not search for new updates”.

The reason is your pc is configured to access a WSUS Server that, for some reasons, isn’t accessible.

First question is: what is WSUS (Windows Server Update Services)?

WSUS or Windows Server Update Services is a free patch management tool available to Windows Server administrators allowing them to authorize, publish and distribute updates within a network (most of the times inside a domain).

Anyway, second (and most important) question is: how I can solve that error? It’s quite simple, following that procedure:

  1. Open registry editor (Start menu –> Run –> regedit)
  2. Find the following path HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU
  3. Chage the value of the UseWUServer from 1 to 0 (double click on it, change the value and click OK)
  4. Restart Windows Update service (Start menu –> Run –> services.msc, find the Windows Update service and click on Restart)

That’s all. Now you can download updates again.


EDIT 28/08/2013: On Windows 8 I’ve also experienced a different solution. From command prompt (as admin) type “netsh winhttp reset proxy” and then re-check for updates.