Buy a VPS - frantech for example
Buy a Domain - namesilo for example
Setup vlcmsd with docker in VPS
Park your domain on Cloudflare
Setup a subdomain with NO proxy function
Point your subdomain to VPS's IP
In your windows 11, start cmd with admin rights
type :
slmgr /ipk W269N-WFGWX-YVC9B-4J6C9-T83GX # add key for Pro
slmgr /ipk NPPR9-FWDCX-D2C8J-H872K-2YT43 # add key for Enterprise
slmgr /skms [your subdomain just created] # add your kms server
slmgr /ato # activate and done

Valid for 180 days, auto renew if kms server reachable and functions