Windows 10 & Outlook 2016 with exchange

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The Error Message is “Cannot start Microsoft Outlook. Cannot open the outlook window. The set of folders cannot be opened. The file c:\ xxx .ost cannot be accessed. You must connecdt to Microsoft Exchange at least once before you can use your Outlook data file (.ost).

When I set up an exchange client in the same domain controller.

Error code: 0x8004011c comes up

The solution is to add one value to the registry.

-> Add this key    “ProtectionPolicy”=dword:00000001


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