Guest questionsformicrosoftproducts Posted October 29, 2019 Posted October 29, 2019 If you delete the product key what problems can you have upgrading Windows? For example this computer had had Windows 7 (factory installed) and years ago was upgraded to Windows 10 free upgrade). Licenses should be on Microsoft servers. KMS was never used. Running this command successfully removed the product key: slmgr.vbs /upk How can it be restored? Would a system restore have to be done? Would it work? slmgr /ipk does not display the product key. slmgr /ato displayed product not found ActiveSkuDescription : Windows® Operating System, RETAIL channel OSVersion : 10.0.17763.2.00010100.0.0.048 ProductName : Windows 10 Pro ProcessorArchitecture : x64 EditionId : Professional What would happen with a failure to upgrade needing a clean install? Is the product key no longer needed (license on Microsoft servers) with a Microsoft account and after the free upgrade to Windows 10? More... Quote
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