Windows 10: Where did my start menu go?

So bad news, an update got installed last night, and bam, not start menu again. Also of note that just like last time, my desktop wallpaper is also gone.

Looking at my installed update, it shows an Windows Update (KB3136561) and an Security Update (KB3135173)

 

KB3136561 would be suspect there if that is the case! Security updates generally don't trash things in Windows while other updates to enable features or fixes for new features can have that effect at times. But the 10 install itself sounds buggy to begin with if this is going to keep reappearing on you!

Suddenly as of late I had another element come up where I could no longer rename files and in particular new or existing folders with no solution in sight! The SFC found files it couldn't fix and the Disk Check tool being scheduled at the Command promp(admin) with both repair switches froze solid at 13%! That must have happened only seconds after I walked away to catch a 2hr. flick while having dinner! When getting back expecting to be at the sign in screen I found it frozen!

Solution? At that time since this was the main drive's Threshold 2 Update over the 10586 Insider over the 10576 over the 10565 Insider build in succession but having kept it at the TH2 I simply enabled the Insider builds again and eventually saw the latest 14271 build fix everything! No more problem renaming anything! This could be a fix for you there as well. Just something to consider over repair installs and clean installs going nowhere fast.

 

And its back again, approx four weeks since the last time, which I resolved last time by "un-installing latest build".

Last night I noticed my start menu had stopped working again, even weirder (related?) was when I turned my monitors on today (I leave my PC on), my primary monitor had reverted to 600x800 resolution? No idea if this is related, but a restart didn't fix it, unplugged the display port cables, plugged them into different display-port ports on my graphics card, and back to normal. After restarting, my desktop background has gone back to black, and all windows settings windows, explorer etc take 20-30 seconds to open up.

Unlike last time, there is no option to uninstall latest build, only to do an recovery or reset. Looks like I'm back to doing another restore from my Acronis backups, or using a restore point.

Also of note, I've had 4-5 laptops running Windows 10 have similar problems at work (Laptop Technician), although they have all only had the start-menu not work, not the other symptoms. All of these have been fixed with either reverting to an restore point, or factory resetting.

Getting a bit annoyed that this issue has been occurring for two months, and have no resolution, other then constantly reverting my computer to earlier point using whole drive images.

 

Just rolled back two an restore point about four days ago, still no start menu.
Did an furthur restore point roll back to 22/03/2016, still no start menu and slow performance from settings/explorer windows etc.

What ever this is isn't getting reverted with the restore points. Looks like I'm going to have to roll back with an Acronis Drive Image.