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?
