[TrK]

If I am correct, you can only use that command a few times? Correct me if I'm wrong.

For those who are both students and are eligible for signing up at Dreamspark: Windows 2008 and 2012 are FREE for educational usages.

Dreampark is great but some of us are not eligible to take that package from dreamspark. You are right that these commands will only work three times that means you can renew your trial license three time. I am sure you guys will find a way to block KMS service to not get license warning after third trial expires.

I have updated the post with Windows 7 RAM usage. It's strange why it stay stuck at 1.55+ GB even when nothings running. Maybe it's the vmware.

Try to boot it in safe mode if the usage remains same then you will need to reinstall it. For boot in safe mode you can do that from msconfig.exe.