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

如何修复 办公室 365 Pro Plus 错误 CAA50021: Device Registration Issue. This 错误 may occur in any 办公室 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.

解决方案 1 命令提示符 (指令管理系统)

Better use the command prompt because 视窗 电源外壳 does not understand %ProgramFiles(x86)% in command. But the solution can be completed in both 指令管理系统 和 电源外壳.

1. 跑步 命令提示符 或者 电源外壳

2. At appeared 命令提示符 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. 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

解决方案 2 (Windows PowerShell)

1. Right Mouse button click on the Start button and run 视窗 电源外壳 (行政);

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

解决方案 3 (注册表编辑器)

Change Registry to disable modern authentication for office applications.

1. Click on 开始 button and type:

regedit

2. At appeared 注册表编辑器 application right mouse button click and select Run as administrator;

3. 导航至:

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

4. And set key EnableADAL REG_DWORD to Value: 0