Deferring updates does not work.

I'm having some real problems with KB3176493 Cumulative Update for Windows 10 Version 1511 for x64-based Systems. After the update one of my disk drives disappears. The disk (D:) is my main data drive. C: is purely for Windows and applications. Both C: and D: are two disk RAID arrays running from the same RAID controller on the Dell motherboard.

If I uninstall the update all is well again. I've tried deferring updates but it downloads and wants to install at next shutdown. Next day I uninstall but on closing down it wants to update again. There seems to be no way to tell it not to perform the update, at least until I've cured the problem.

Any advice gladly received.

Norman

After posting I found this and applied the option Never_Notify_or_Check_for_Updates.reg I then went in to Settings/Update and saw that there was a flag saying "Some settings are managed by your organisation".

I then restarted and was again informed that updates would be installed and restarted. That message was there before anyway so I went ahead with the restart. Sure enough the D: drive had disappeared so uninstalled the update. After restarting again all was well. At the moment the Power options are not telling me that there is an update ready for install so keeping my fingers crossed that it doesn't come back.

Now I need to quickly find the reason that KB3176493 is screwing up my PC.

Norman

It seems you can't choose what to install, just "Install now".


If you click on "Details" it shows the KB3176493 is waiting to download but the Defender definitions are waiting for install

I'm frightened to do it in case it starts downloading the cumulative update. :)

I'm getting ready to do a clean install of the AU once I've got Macrium images of both my C: and D: drives. The in place upgrade doesn't work on my system (see separate thread post #165).

[Edit] Just realised you had contributed to my query.