O365 office 太久沒使用，無法驗證授權 ( 或欲更換新的 O365 授權帳戶 )

Summary:

–Remove the Identities folder from the Registry

Office 2016:

            HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Common\Identity\Identities and delete the “Identities” folder

※ 如果您曾經裝過 Office 365 的 Office 2013，請一併刪除 HKEY_CURRENT_USER\Software\Microsoft\Office\15.0\Common\Identity\Identities

否則會以 15.0 的 Office 365 帳號登入啟用

Office 2013:

    HKEY_CURRENT_USER\Software\Microsoft\Office\15.0\Common\Identity\Identities and delete the “Identities” folder

 
–Run the scripts mentioned in below by running the command prompt as administrator

Office 2016:
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查詢 O365 金鑰末5碼
cscript.exe “%ProgramFiles(x86)%\Microsoft Office\Office16\ospp.vbs” /dstatus

移除 O365 金鑰
cscript.exe “%ProgramFiles(x86)%\Microsoft Office\Office16\ospp.vbs” /unpkey:XXXXX

cscript.exe “%ProgramFiles(x86)%\Microsoft Office\Office16\ospp.vbs” /ddescr:0x80070070

LAB 機空間不足

再做一次

Office 2013:
===========
cscript.exe “%ProgramFiles(x86)%\Microsoft Office\Office15\ospp.vbs” /dstatus

略

cscript.exe “%ProgramFiles(x86)%\Microsoft Office\Office15\ospp.vbs” /unpkey:XXXXX

略

XXXXX is the last 5 digits of the Office key that is displayed from the /dstatus switch

–Launch Office applications and activate with Office 365 credentials

以新帳號登入 O365

確認以新帳號啟用 O365

參考：https://support.hollandcomputers.com/kb/a126/office-365-subscription-message.aspx