I updated win 7.1 to 10 yesterday. I need this PC as a second test so set up insider fast ring. As expected after a couple of hours I get the message 14376 is ready to install on the update page of settings. I click to install but after a short while get the message "can't install some updates because other updates in progress" No obvious sign of any other updates (although a definition update appeared to work). I downloaded the Update Troubleshooter Tool it stopped and started Wuauserv / Bits / Cryptsvc reporting that it has solved the problem. I restarted but the problem was not solved. I repeated the steps (1) with the Troubleshooter (2) manually via the CMD line (3) setting the services to automatic including Msiserver.
The PC is 64bit if that is relevant. I also have another PC 32 bit registered on the fast ring under the same MS account - I have had no recent glitches with this PC which I updated from 14372 to 14376 yesterday without a problem.
Please can anyone advise what I should do now