How to Fix Kontor 365 Pro Plus Error CAA50021: Device Registration Issue. This error may occur in any Kontor 365 Pro Plus desktop application.
We weren`t able to register your device and add your account to Windows. Your access to org resources may be limited.
Solution 1 Command Prompt (CMD)
Better use the command prompt because Windows PowerShell does not understand %ProgramFiles(x86)% in command. But the solution can be completed in both CMD og PowerShell.
1. Run Command Prompt or PowerShell
2. At appeared Command Prompt application right mouse button click and select Run as administrator;
3. Type the following command:
cscript.exe "%ProgramFiles(x86)%\Microsoft Office\Office16\ospp.vbs" /dstatus
4. Efter det, you get some information about Office installation and:
Last 5 characters of installed product key: XXXXX
5. Type the following command, where XXXXX – your last 5 characters of the installed product key:
cscript.exe "%ProgramFiles(x86)%\Microsoft Office\Office16\ospp.vbs" /unpkey:XXXXX
Solution 2 (Windows PowerShell)
1. Right Mouse button click on the Start button and run Windows PowerShell (Admin);
2. Type the following command:
cscript.exe "C:\Program Files (x86)\Microsoft Office\Office16\ospp.vbs" /dstatus
3. Efter det, you get some information about Office installation and:
Last 5 characters of installed product key: XXXXX
4. Type the following command, where XXXXX – your last 5 characters of the installed product key:
cscript.exe "C:\Program Files (x86)\Microsoft Office\Office16\ospp.vbs" /unpkey:XXXXX
Solution 3 (Registry Editor)
Change Registry to disable modern authentication for office applications.
1. Click on Start button and type:
2. At appeared Registry Editor application right mouse button click and select Run as administrator;
3. Navigate to:
HKCU\SOFTWARE\Microsoft\Office\16.0\Common\Identity\
4. And set key EnableADAL REG_DWORD to Value: 0
Had to create the REG_DWORD as it wasn’t there. But after I added it and restarted Outlook it connected to Exchange with no issue. Thanks!
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Hi. Try all 3 solutions