Make sure you are connected to internet and run cmd as administrator then run the following commands one by one:
SLMGR.VBS /UPK
SLMGR.VBS /CPKY
SLMGR.VBS /CKMS
DISM /ONLINE /GET-TARGETEDITIONS
SC CONFIG LICENSEMANAGER START= AUTO & NET START LICENSEMANAGER
SC CONFIG WUAUSERV START= AUTO & NET START WUAUSERV
CHANGEPK.EXE /PRODUCTKEY VK7JG-NPHTM-C97JM-9MPGT-3V66T
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PC will restart
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Then download any KMS/DAS Loader activators and use it to activate your windows
Enjoy!