Every update to O365 generates 21 Warnings in 7 registry keys

[Deleted]

Have O365 Home 64-bit on two machines, but the second installation (on a Win 7 Pro 64-bit PC) has an issue.  So I have delayed installing on three other machines until I get help.

Every time O365 updates, it generates 21 Warnings in Event Viewer that 7 registry keys are protected and cannot be modified.

I've tried many, many different things, including UNinstalling and REinstalling O365 (including the strong UNinstall via o15-ctrremove.diagcab) and adding EVERYONE with Full Control to the Permissions for those keys AND giving Full Control to the other accounts in Permissions.  But no luck.

There are always 3 Warnings for each of 7 keys.  Those 7 keys are:

\Software\Classes\CLSID\{3050F667-98B5-11CF-BB82-00AA00BDCE0B}\InprocServer32
\Software\Classes\CLSID\{3050F819-98B5-11CF-BB82-00AA00BDCE0B}\InprocServer32
\Software\Classes\CLSID\{AE24FDAE-03C6-11D1-8B76-0080C744F389}\InprocServer32
\Software\Classes\CLSID\{25336920-03F9-11CF-8FD0-00AA00686F13}\InprocServer32
\Software\Classes\CLSID\{3050F391-98B5-11CF-BB82-00AA00BDCE0B}\InprocServer32
\Software\Classes\CLSID\{0BE35204-8F91-11CE-9DE3-00AA004BB851}\InprocServer32
\Software\Classes\CLSID\{0BE35203-8F91-11CE-9DE3-00AA004BB851}\InprocServer32

I have posted about this problem in TechNet and Answers, but no solution yet.

1) How can these keys be so protected that EVERYONE-Full Control in Permissions still does not permit them to be modified in the updates?

2) What do those keys do anyway?

Thanks.

[#2]

Hey - no ideas?  What is protecting those keys?  Thanks.