Do not allow an OST file to be created

Supported on: At least Windows Server 2008 R2 or Windows 7

Registry

HKCU software\policies\microsoft\office\16.0\outlook\ost

Value name: noost

Enabled: noost = 2

Disabled: noost = 0

Prevents offline folder use at startup. This is equivalent to clicking the Disable Offline Use button in the Offline Folder Settings dialog box.