下載微軟OFFICE2016反安裝程式然後執行移除這才會把授權移除乾淨https://support.office.com/zh-hk/article/%e4%b8%8b%e8%bc%89%e4%b8%a6%e5%ae%89%e8%a3%9d%e6%88%96%e9%87%8d%e6%96%b0%e5%ae%89%e8%a3%9d-office-2016-%e6%88%96-office-2013-7c695b06-6d1a-4917-809c-98ce43f86479?wt.mc_id=UninstallPC_262f265f-4c5e-4c46-852f-2a3890829d34&ui=zh-TW&rs=zh-HK&ad=HK