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Possible Duplicate:
How can I reinstall Windows 7 if I lost my installation DVD?

I bought a windows 7 ultimate key from ebay, but i want to download windows 7 from a trusted source, so is there a microsoft link for this? or else which one should I download for windows 7 ultimate.

Microsoft Windows 7 90-Day Eval VHD is available for download here.

Another Windows 7 RTM Enterprise 90-Day Evaluation is available for download here.

Thank You.

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marked as duplicate by nhinkle Dec 10 '11 at 23:53

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

up vote 11 down vote accepted

As you may have found by now you cannot purchase Microsoft keys from ebay and expect this to be a legitimate transaction.

Windows keys cannot be sold separately from the content their refer to. I'm afraid you were the victim of a common scam. :(

In the future only purchase Microsoft products from established suppliers.

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The only downloads Microsoft offers are for MSDN/Technet subscribers. But I believe you can see the page with the SHA1 hash for the ISO and compare it with what you can get elsewhere.

For reference, the hash for Windows 7 Ultimate from MSDN:

SHA1: 5395DC4B38F7BDB1E005FF414DEEDFDB16DBF610 (x86)
SHA1: 326327CC2FF9F05379F5058C41BE6BC5E004BAA7 (x64)
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Thank You for sha1, but how can i check the sha1 before downloading the file? is there a service on which i directly paste the download link and it will give me a sha1 code. – Shishant Nov 7 '09 at 17:01
There really isn't a reliable way to check the SHA1 hash prior to downloading. – Goyuix Nov 8 '09 at 1:40

you can't use your Windows 7 Ultimate license with the Windows 7 Enterprise evaluation copy.

there aren't any legal downloads for Windows 7 Ultimate, unless you have a MSDN / Technet subscribtion.

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