Windows update KB3004394 issues

Windows update KB3004394 on a Win7-x64 f'ed up my display driver. After uninstalling the update, the new AMD display driver appears to have installed correctly.

This Update also causes the Windows ((Troubleshoot Problems Function)) not to work. Removing this update and rebooting will resolve this issue, the other updates 12-10-14 works.

same issues uninstalled and working fine

Windows update KB3004394  causes the following issues on my Windows 7 x64 Ultimate system:

All MMC functions (Event Viewer, etc.) now require Administrator action, although in an Administrator account.

Windows Defender service will not start

The Windows Defender Service Terminated with the following error

%%-2147023113

Removing it  returns the system to normal.

Anyone else experience this?

This Update also causes the Windows Troubleshoot Problems Function not to work. Removing this update and rebooting will resolve this issue, the other updates 12-10-14 works.

Believe what you want.

To all other readers: In the interests of balanced debate (this is after all a discussion) and FWIW, installing Microsoft Updates has never slowed down my PC. Sure, on rare occasions an update has caused problems until a resolution is forthcoming (not this occasion though). However, all in all, I would rather be fully patched and take the risk of (temporarily) introducing a bug rather than become increasingly vulnerable to attack as each successive update is ignored. I will be ignoring Arnold Bath's advice rather than Microsoft Updates.