How to Fix Office 365 Pro Plus Error CAA50021: Device Registration Issue

Comment réparer Bureau 365 Pro Plus Erreur CAA50021: Device Registration Issue. Ce erreur may occur in any Bureau 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 Invite de commande (CMD)

Better use the command prompt because Fenêtres PowerShell does not understand %ProgramFiles(x86)% in command. But the solution can be completed in both CMD et PowerShell.

1. Courir Invite de commande ou PowerShell

2. At appeared Invite de commande application right mouse button click and select Exécuter en tant qu'administrateur;

3. Type the following command:

cscript.exe "%ProgramFiles(x86)%\Microsoft Office\Office16\ospp.vbs" /dstatus

4. After that, 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 le début bouton et exécuter Fenêtres PowerShell (Administrateur);

2. Type the following command:

cscript.exe "C:\Program Files (x86)\Microsoft Office\Office16\ospp.vbs" /dstatus

3. After that, 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 (Éditeur de registre)

Change Registry to disable modern authentication for office applications.

1. Cliquez sur Commencer button and type:

regedit

2. At appeared Éditeur de registre application right mouse button click and select Exécuter en tant qu'administrateur;

3. Accédez à:

HKCU\SOFTWARE\Microsoft\Office\16.0\Common\Identity\

4. And set key EnableADAL REG_DWORD to Value: 0