Need windows server license for creating testing guest os at VM?

Want to create a testing environment of window servers at VM, do I need to purchase license for this purpose?
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Hello ThereSystem AdministratorCommented:
Yes. Every single copy of Windows needs to be activated. Even for VM. There is no difference.

1 server license for 2 VM's
If it's for testing its ok but if your using it as another production machines the same rules apply as in server

THIS article might help you.

Also this one explains what to do.

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litmicAuthor Commented:
The testing guest os windows server is deleted immediately after testing, no for production. Need windows server license?
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
If it's not in Production, then no license needed.

and if you create a template, and hit Sysprep, then no license is installed in the OS, and you can hit Skip on install....
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Seth SimmonsSr. Systems AdministratorCommented:
The testing guest os windows server is deleted immediately after testing, no for production.

you can run windows as a trial
Hello ThereSystem AdministratorCommented:
If you don't activate your OS it will be fully functional for some time. After that you will need to activate it.

As I said in my first post:
If it's for testing its ok but if your using it as another production machines the same rules apply as in server.
I don't think the OS quits working ,but you get a screen saying you may be a dictum of counterfeiting as windows isn't genuine after a while.
Hello ThereSystem AdministratorCommented:
Yes, it will still work but...

Evaluating Windows Server 2008 software does not require product activation. Any edition of Windows Server 2008 may be installed without activation, and it may be evaluated for 60 days. Additionally, the 60-day evaluation period may be reset (re-armed) three times. This action extends the original 60-day evaluation period by up to 180 days for a total possible evaluation time of 240 days.

If you do not activate the software within the grace period, you will receive persistent notifications, including a message from the system tray every 60 minutes that reminds you to 'Activate Windows Now'. Also on-screen, there will be a permanent notice that the copy of Windows is "non-genuine," Microsoft's term for pirated or not-yet-activated versions of the operating system; a similar message appears whenever the user launches the Control Panel, which houses Windows' settings and options. Also, the desktop background will turn to black. While you can change the plain black background to any background you choose, if changed, the background will reset to a plain black background every 60 minutes,  moreover you will not be able to receive optional updates from Windows Update unless the copy of Windows is activated. And MORE!
Hello ThereSystem AdministratorCommented:
A conclusion is that you don't have to activate a VM for testing purposes unless you want to test updates etc. I'd find out what limitations will your machine have after evaluation time and if it will affect the VM behavior you require for testing.
Even if you use it in lab / test environment for more than 180 days, officially speaking, you need license because MS gives it as trial and beyond trial period but obvious they expect that you will buy it to continue
Practically you can use it as test / lab / personnel machine for unlimited time (with license breach warning message) as long as it is commercially not exposed (production use)
They can disable all functionalities post trial period, but they don't do that in good faith
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