The above article confirms that my PC is not the only one that can't install KB4088776 (OS Build 16299.309)
So far, my laptop has failed 18 times in attempting to install this update!
It was a similar story with KB4056892 which failed 24 times with the error code Ox80070020.
I see there is also a new update KB4089848 (OS Build 16299.334) but my PC hasn't downloaded this yet - it was issued on 22 March 2018.
At present, the latest installed update on my PC is KB4054517 which successfully installed on 13 December 2017 (OS Build 16299.125).
I just wondered whether other people are experiencing the same difficulties with installing these updates?
I'm not sure whether it really matters, but I keep getting the message "Your device is at risk because it's out of date and missing important security and quality updates".
Any advice appreciated.