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brasiman

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Can I install Windows Server 2008 Enterprise R2 license key on Server 2008 Enterprise (not R2)?

I have a server running Windows Server 2008 Enterprise. I need to purchase a license key for it. Can I purchase a license key for Windows Server 2008 Enterprise R2? Will that work without having to reinstall the OS? Right now its asking me to activate Windows. I really don't want to reinstall the OS because i've been running a trial version up to this point and have quite a bit on the server. Thoughts? And where is the best place to buy the OS key? Thank you!!
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brasiman

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Here is a screenshot of my OS version. I hope this helps too.
WindowsServer2008Enterprise.bmp
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John
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Thank you! I called Microsoft. Good to know they aren't interchangeable! I can get 2016 and Microsoft supports two versions older than the newest.  So I can still get 2008. However, i need to reinstall the OS. So i will likely keep 2016.
If Microsoft only supports 2 versions older than 2016, then that would only be 2012 and 2008R2... It would leave 2008 out of the equation...

But if you can manage to buy via open license, I do believe they support downgrade rights.