Hi,

older Windows Versions i.e 7, 8.1 and Server 2012R2 have the problems that an older Version of the Windows Update Agent is installed which consumes a lot of CPU cycles.

Two Updates are available to fix this issues:

• KB3177467 – Updates the Windows Servcing Stack
• KB3172605 – UpdateRollup. This brings a newer Version of the Windows Update Agent

Install it in the order listet above.

Before installing KB3172605 check if Windows Update has the latest Version. Latest Version are (31/01/2017)

Windows 7: 7.6.7601.23453

Windows 8.1 and Server 2012R2 : 7.9.9600.18340

D:\> (Get-Item C:\Windows\System32\wuauclt.exe|select-object VersionInfo).VersionInfo.FileVersion
7.6.7601.23453 (win7sp1_ldr.160513-1233)

The more importent file to check is C:\Windows\System32\wuaueng.dll but on Windows 8.1 powershell (17489) and explorer (18340) show different versions on the same file – strange.

If you have these versions are higher ones, no update is requiered.

Michael