Brian, Before I do so, I want to inform you that after the Lenovo update, I tried to install once again manually update KB3071663, and the result was that I had to restore once again to critical update, but it was not possible. This error I got.
System restore could not access a file. This is probably because antivirus program is running on the computer. Temporarily disable your antivirus program and retry system restore. An unspecified error occurred during system restore (0x80070005). You can try system restore again and choose a different restore point. If you continue to see this error, you can try an advanced recovery method."
Before I used to have also this error and I had to restore pc from safe mode with networking. Now I did as well. Before Microsoft also told me that there is a problem with my antivirus and that they are doing any updates. But I have this pc from spring with this antivirus and until now it was ok. I tried also their advice to turn off the antivirus and install updates, but it has not helped.
Should I continue with your last instructions?