Windows 7 Pro OEM Activation Keys

[CommodoreS]

I have some laptops at a school which have stickers with Windows 7 Pro license keys on them. I have rebuilt these using WDS and a Win 7 Pro retail image. During the build I have then entered the key from each laptop manually, which the laptops have accepted and said the windows is now activated.

 

However a few days later users are now logging in and windows is saying the key is not genuine and windows is not activated. I entered the OEM key from the laptop again, and again it was accepted saying the key was OK and windows was activated.

 

A few days later it is having the same problem yet again. I have only activated machines using a volume license key in the past and VAMT2, but deiced to use the Win 7 Pro key from the sticker on these laptops.

 

Does anyone know what might be wrong please?

[glennda]

Different ISO images take diffrent keys with Windows. As long as you have an OEM version of the software on the machine you are able to use a Volume License key to activate under the Microsoft licensing agreement AFAIK.