I have done a Office 365 Software Update with Software Group,Office 365 Client Update - Semi-annual Channel Version 1803 for x86 based Edition (build 9126.2275)
I got the error message Failed to download update(s) 0x80004005 and it hungs at 50%
Alternativ Handler.log
failed launching third party Alternate Update Agent for method of Download. Error = 0x8000000e. AlternateHandler 2018-09-09 12:53:58 5404 (0x151C)
CleanupDownload... AlternateHandler 2018-09-09 12:53:58 5404 (0x151C)
Canc