Following the latest batch of updates on August 2018, we are now seeing the error on our Windows 2012 R2 RDS box with O365 installed:

Log Name: Application
Source: Microsoft-Windows-RestartManager
Date: 11/09/2018 11:56:35
Event ID: 10010
Task Category: None
Level: Warning
Keywords:
User: SYSTEM
Computer: %COMPUTERNAME%.domain.suffix
Description:
Application 'C:\Program Files\Microsoft Office\root\Office16\EXCEL.EXE' (pid 48464) cannot be restarted - Application SID does not match Conductor SID..
Event Xml:



10010
0
3
0
0
0x8000000000000000

1177522


Application
%COMPUTERNAME%.domain.suffix




0
48464
C:\Program Files\Microsoft Office\root\Office16\EXCEL.EXE
Microsoft Excel
0
0
82
67108865
1

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We found the best thing to do with the RDS sever that was crashing Excel and Office a lot , was to increase resource allotted to te server. In this case we doubled RAM and CPUs on the virtual host, and 95% of the crashes evaporated. We still get the occasional issue, but that tends to be from people with two hundred Windows left open for eight yers.

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There are a lot of issues with updates and Office 365 on an RDS server - we find that a restart has to be undertaken about once a fortnight to keep from slowing. If you can spread out disk load, regardless of whether it is s VM or not, that really does help too, especially. O cerci game the page file and temp file areas.

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