KB4550945 CU Win 10 v1903 build 18362.815 and v1909 build 18363.815 Win Update

Two machines went well, the 3rd one did not want to cooperate. @ %100 installing, error msg "..could not complete installation.. will try again some time later". After 3 tries, deleted everything in download folder, did a sfc /scannow restarted computer and it completed without error.

what are optional updates really for are they like test builds as last time i did one it really messed up my machine

Tonyb said:

what are optional updates really for are they like test builds as last time i did one it really messed up my machine

Yes, they are tests for the next patch release:

The “C” and “D” releases occur the third and fourth weeks of the month, respectively. These preview releases contain only non-security updates, and are intended to provide visibility and testing of the planned non-security fixes targeted for the next month’s Update Tuesday release. These updates are then shipped as part of the following month’s “B” or Update Tuesday release.

https://techcommunity.microsoft.com/...ce/ba-p/222376

Hi folks
Updating on a Virtual Machine first -- I'm always sceptical on these builds if Network will continue working -- on my systems networking is often broken by Windows New builds so I'll test first with a Virtual Machine .

Upgrading now

All OK inc network

1) Windows version



2) Network from one NAS server --shows Windows VM (and 2 other NAS's)



3) Network From Windows VM shows all the NAS's (3)




job done -- so next I'll update existing Windows machine.

Update --also working properly on Windows laptop -- was quick via WU and a re-start required. Just a few minutes.

cheers
jimbo

Downloaded, and installed here. Looking good. Looking forward to 20H1 !