I'm trying to upgrade from a unlicensed windows 7 to a purchased Windows 10 edition. Both are Home Premium editions, in the same language, so I should be able to upgrade without problem.
But n the install, windows 10 is telling me that my license is not correct and therefore, that it cannot continue. So I'm seeking to find a way to either :
But in both cases I encounter a problem : I simply cannot use the "Activate Windows" from the control panel : It gives me an error dialog box with the error code
I also cannot start the sppsvc service because it gives me a "System Error 2".I tried multiple repair operations (sppsvc manual repair, WAT update, sfc /scannow, chckdsk) and none of them work.
Google did not help : this error code seems pretty unique, although I don't know why. How can I repair that ?
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