Callender said:
Cheemag said:
Stopping wusa.exe did nothing very much, but stopping the service with net stop WUAUSERV did. I was now able to install KB3020369 (the Servicing Stack Update).
The correct way to stop Windows Update Service is via Start> Run> services.msc

Attachment 388723
Indeed, but I rather like the command line. >net stop WUAUSERV comes to the same thing, surely?

It will restart after a reboot. Mostly after installing updates Windows lets you know if a reboot is required to finish installing updates. Reboots are needed when replacing files that are currently in use by the system.
Point taken, but if it's being done unattended, then that won't be possible. I thought I could leave it to install KB3125574 on its own, hence my query about these necessary reboots. Would it reboot on its own automatically?

(The Update Service offered me updates yesterday, but it ended up eternally checking for updates).