(Of course I did 'stop-CsWindowService' before and there is 97GB of 136GB free disk space on C: (the only Volume)) This is the first time that something like that happens here. 510 but 'kb 4036312 Skype for Business Server 2015' is stuck in error 1603.īoth servers are up and running SfB Server 2015 since early 2015 and were patched since then successfully. While patching to the latest CU the Standard FE went fine but on the single Edge Server the CoreComponents are updated from.