Updated by mistake - Microsoft Community


had windows 10 home version preinstalled in laptop along digital license. out of curiosity younger brother upgraded windows 10 pro version random key. key didnt work , *activate windows * message keeps popping up. how earlier version back?

there's no downgrade pro home. you'll have factory reset, reinstalls put on computer @ factory.


Windows / Windows 10 / Install, upgrade, & activate / PC



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