Reset Office 365 ProPlus Activation state. 

Reset Office 365 ProPlus activation state 

It’s very common for users to switch devices or for an enterprise company to add/change Office 365 tenants. Another scenario is when enterprise organizations roam licensing/credentials to simplify sign in.  After an Office 365 user activates there are four locations that must be cleared to reset the activation/install to a clean state.  

Note: If you move from a sovereign cloud to the global cloud (or vice versa) within the first 7 days of the move the federation provider detection may give inconsistent results and cause Office authentication and activation issues. To overcome this 7 day timeframe consider to publish a public CNAME entry for “msoid” that matches the value for your new tenant. 


1.  Remove Office 365 license for Subscription based installs (not Shared Computer Licensing scenarios): 

To remove the Office 365 license, you must run two cscript command lines. The command lines are: 

        A. Run C:\program files <x86>\Microsoft office\office15>cscript ospp.vbs /dstatus 

The above command line will generate a report of the currently installed/activated license. (See Below) 

NOTE: You might see multiple licenses in the /dstatus report. 

        B. Make note of value for “Last 5 characters of installed product key” 

        C.  Run C:\program files <x86>\Microsoft office\office15>cscript ospp.vbs /unpkey:“Last 5 of installed product key” For example: C:\program files <x86>\Microsoft office\office15>cscript ospp.vbs /unpkey:WB222 (See Below) Repeat the step above if necessary until all keys are removed. 

After running the /unpkey: command line you will see a “Product Key uninstall successful” message. You can now close the Command Prompt and move onto Step 2. 

2. Remove cached identities in HKCU registry: 

        A. In the Registry Editor navigate to HKCU\Software\Microsoft\Office\15.0 or 16.0\Common\Identity\Identities and remove all of the identities under \Identities. 

NOTE: If using Shared Computer Licensing remove the above Identities from HKEYUsers\SID. 


3. Remove the stored Credentials in the Credential Manager: 

A. Open Control Panel > Credential Manager.  Remove all Windows credentials listed for Office15 or Office16. 

       B. To remove the Credential Click on the Drop down arrow and choose Remove from Vault.(See Below) 

Shared Computer Licensing scenarios you must remove the Token and identities listed below. 

File Location  Appdata\local\Microsoft\Office\15.0 or 16.0\Licensing 


4. Persisted locations that must be cleared 

Credential Manager: 




HKCU\Software\Microsoft\Protected Storage System Provider 

Office 365 activation Tokens and Identity 

Appdata\local\Microsoft\Office\15.0 or 16.0\Licensing 

HKCU\Software\Microsoft\Office\15.0 or 16.0\Common\Identity 

HKEYU\(The Users SID)\Software\Microsoft\Office\15.0 or 16.0\Common\Identity 

The above steps will reset the activation state for Office 365(2013/2016). The activation flow after the locations are cleared will represent an initial activation