>>Less then a month ago, the IT department gave me a newly formatted computer with Windows 7 installed. Over the last weekend, the machine decided that the version of windows OS is not genuine. Has anyone else experianced this, and what causes it, and how to fix it.
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>>This has happened on a older machine, and my machine at home. Research on the web has proved nothing that resolves the issue. I have tried to re-register it, but the tool does not launch because the OS is not genuine.
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>The way to fix it is to hand it back to the IT department and have them fix their installation.

I have contacted them, but it is still early in the day.

I am thinking that either they did not properlyt activate the copy of windows, or a third party application (Dropbox or Teamviewer) is interferring somehow.