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Ways to confirm burnt ISO/disk is legit?

Fippe290
By Fippe290
in Windows
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I need to put Windows 7 back on my olde laptop, which has what I think is an OEM license on the bottom. As I understand it, that means I can't download the ISO from Microsoft, since that's for retail licenses only. However I do have some burnt DVDs hanging with Windows 7 on them, the problem being that I can't remember where the ISOs on those came from. I need to verify that these copies of Windows are completely legit and verbatim original, not messed around with (e.g. if it had come from a dodgy torrent). Is there any way to do this?

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Just now, Fippe290 said:

I need to put Windows 7 back on my olde laptop, which has what I think is an OEM license on the bottom. As I understand it, that means I can't download the ISO from Microsoft, since that's for retail licenses only. However I do have some burnt DVDs hanging with Windows 7 on them, the problem being that I can't remember where the ISOs on those came from. I need to verify that these copies of Windows are completely legit and verbatim original, not messed around with (e.g. if it had come from a dodgy torrent). Is there any way to do this?

Compare between the hashes of a legit one and what you have.

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If you want to compare the hashes the Linux command would be: "sha1sum <filename>",  and for windows CMD "certutil -hashfile <filename>"

Have you tried turning it off and on again?

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