And is the second retail version from a torrent or did you purchase it ?
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Digger
I have a functioning retail version of Windows 7 on one internal drive and the original corrupted version of W7 on a second drive. I was thinking of doing a clean install of W10 on the second drive from an ISO, after formatting the drive, to enable a check on the compatibility of various programs and hardware. I assume that I wouldn't be able to validate the W10 version on the same machine but I would use this set-up to enable a decision on which OS to go for.
Is this feasible?

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