The registry key is not fully explained.

[Kazumi-Takatori]

After installing Office the following is stated.

rem Mount the default user registry hive
reg load HKU\TempDefault C:\Users\Default\NTUSER.DAT
rem Must be executed with default registry hive mounted.
reg add HKU\TempDefault\SOFTWARE\Policies\Microsoft\office\16.0\common /v InsiderSlabBehavior /t REG_DWORD /d 2 /f
rem Set Outlook's Cached Exchange Mode behavior
rem Must be executed with default registry hive mounted.
reg add "HKU\TempDefault\software\policies\microsoft\office\16.0\outlook\cached mode" /v enable /t REG_DWORD /d 1 /f
reg add "HKU\TempDefault\software\policies\microsoft\office\16.0\outlook\cached mode" /v syncwindowsetting /t REG_DWORD /d 1 /f
reg add "HKU\TempDefault\software\policies\microsoft\office\16.0\outlook\cached mode" /v CalendarSyncWindowSetting /t REG_DWORD /d 1 /f
reg add "HKU\TempDefault\software\policies\microsoft\office\16.0\outlook\cached mode" /v CalendarSyncWindowSettingMonths /t REG_DWORD /d 1 /f rem Unmount the default user registry hive
reg unload HKU\TempDefault
rem Set the Office Update UI behavior.
reg add HKLM\SOFTWARE\Policies\Microsoft\office\16.0\common\officeupdate /v hideupdatenotifications /t REG_DWORD /d 1 /f
reg add HKLM\SOFTWARE\Policies\Microsoft\office\16.0\common\officeupdate /v hideenabledisableupdates /t REG_DWORD /d 1 /f

Is it really necessary to set Outlook to cache mode?
I am an Outlook SME.
However, I am unclear why cache mode must be enforced in AVD multisession.

The following URL answers "because it is best practice".
Please explain the reasoning for the very restrictive Outlook sync settings #45731

If it is stated as Best practice, it should also be stated as such.

When updating Outlook behavior, the registry key "HKU\SOFTWARE\Policies\Microsoft\Office\16.0\Outlook" is normally used.
If you mean that "HKU\TempDefault\software\policies\microsoft\office\16.0\Outlook" should be used instead of the normal registry key, that should also be added.

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Document Details

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• ID: dbf7e52a-b2b1-0372-0e62-12f6733fc699
• Version Independent ID: a21ed743-3fbc-0d20-6947-188744e0a2f7
• Content: Install Office on a master VHD image - Azure
• Content Source: articles/virtual-desktop/install-office-on-wvd-master-image.md
• Service: virtual-desktop
• GitHub Login: @Heidilohr
• Microsoft Alias: helohr

[VikasPullagura-MSFT]

@Kazumi-Takatori Thanks for the feedback! I have assigned the issue to content author to check and update the document as appropriate.

[VikasPullagura-MSFT]

@Heidilohr Can you please check and add your comments on this doc update request as applicable.