Illegal should be using the OS without payment (let's say, not purchasing the product KEY, which mostly counts in this cases) and instead using cracks to avoid the 30 day trial. Most enterprises do DVD copies of windows so if one goes nuts, they got another working copy...
I believe that I'm not supposed to post links here, but search for downloads at mydigitallife. No links there for Ultimate, but you could do the genericization (is that a word?) trick (ei.cfg removal) with any of the other versions.
The links are for digital river (who handled the student version downloads), and they still seem to be live.
In future, I suggest making a backup copy of the DVD. It's not encrypted.
We are not allowed to post download lnks here due to piracy concerns, however if you download be sure to immediately rightclick scan the ISO with your AV and Malwarebytes.
Next check the ISO HASH against the official Win7 HASH to make sure nothing whatsoever has been added. This is your certification of a clean-copy installer.
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