For what it's worth, I've just come out of an incredibly bad few days thanks to KB3022345 and it was Go The Power via Bleeping Computer who fixed my Win7 laptop.
A few days ago I read that Microsoft would not accept that PCs had been corrupted by the KB but the article said that Microsoft were about to release the 5th or 6th version of it but under an entirely different name - KB3068708. The advice given was not
to install it, to wait a few days then visit forums to see if there were any threads on the subject.
Unfortunately, it was installed*** last night along with another 8 so I'm just waiting to find out if the sfc /scannow CBS had shown any problems.
*** After a similar major update problem many months ago I changed my settings so that updates would not be automatically installed - well I thought that I had. But I hadn't - I should have chosen
"check for updates but let me choose whether to download and install them".
Instead I'd selected "**download updates but let me choose whether to install them"**and the result when I shut down last night was the message "downloading 1 of 9 updates - do not switch off" - I couldn't do anything to stop the updates being installed and I'm horrified that the option I'd chosen gave me no choice at all - there was
no shield icon "updates are available" - they just installed presumably as part of the powering down process.