電腦以前從正版win7升級到win10用了一段時間，最近系統壞了，用U盤下了win10家庭版安裝后的激密鑰能用我上個win10版的嗎？怎么找回上個版本激活密鑰?下面給大家分享一下。

操作方法

WIN10家庭版：Windows 10 Home -TX9XD-98N7V-6WMQ6-BX7FG-H8Q99Windows 10 Home N 3KHY7-WNT83-DGQKR-F7HPR-844BMWindows 10 Home Single Language - 7HNRX-D7KGG-3K4RQ-4WPJ4-YTDFHWindows 10 Home Country Specific - PVMJN-6DFY6-9CCP6-7BKTT-D3WVRWin10專業版：Windows10Professional W269N-WFGWX-YVC9B-4J6C9-T83GXWindows 10 Professional N - MH37W-N47XK-V7XM9-C7227-GCQG9。

Win10教育版：Windows 10 Education - NW6C2-QMPVW-D7KKK-3GKT6-VCFB2Windows 10 Education N - 2WH4N-8QGBV-H22JP-CT43Q-MDWWJWin10企業版：Windows 10 Enterprise - NPPR9-FWDCX-D2C8J-H872K-2YT43Windows 10 Enterprise N - DPH2V-TTNVB-4X9Q3-TJR4H-KHJW4Windows 10 Enterprise 2015 LTSB - WNMTR-4C88C-JK8YV-HQ7T2-76DF9Windows 10 Enterprise 2015 LTSB N - 2F77B-TNFGY-69QQF-B8YKP-D69TJ。

Office 2016：Office Professional Plus 2016 - XQNVK-8JYDB-WJ9W3-YJ8YR-WFG99（專業版Plus）Office Standard 2016 - JNRGM-WHDWX-FJJG3-K47QV-DRTFM（標準版）Project Professional 2016 - YG9NW-3K39V-2T3HJ-93F3Q-G83KTP。

roject Standard 2016 - GNFHQ-F6YQM-KQDGJ-327XX-KQBVCVisio Professional 2016 - PD3PC-RHNGV-FXJ29-8JK7D-RJRJKVisio Standard 2016 - 7WHWN-4T7MP-G96JF-G33KR-W8GF4Access 2016 - GNH9Y-D2J4T-FJHGG-QRVH7-QPFDWExcel 2016 - 9C2PK-NWTVB-JMPW8-BFT28-7FTBFOneNote 2016 - DR92N-9HTF2-97XKM-XW2WJ-XW3J6Outlook 2016 - R69KK-NTPKF-7M3Q4-QYBHW-6MT9BPowerPoint 2016 - J7MQP-HNJ4Y-WJ7YM-PFYGF-BY6C6Publisher 2016 - F47MM-N3XJP-TQXJ9-BP99D-8K837Skype for Business 2016 - 869NQ-FJ69K-466HW-QYCP2-DDBV6Word 2016 - WXY84-JN2Q9-RBCCQ-3Q3J3-3PFJ6。