RAM amount doesn't match


I used Disk2VHD to convert a physical server (windows 2008R2) to a VM that runs on Windows 2012 Hyper V.

I assigned 64G RAM to this VM from the host setting. I do can see all the RAM amount correctly in Control Panel>System in the VM, but shows only 32G in the Windows Task Manager>Performance. I would like this VM using all the RAM (64G ) as I allocated to it.

Is there anything I missed to setup in the Hyper V setting? Thanks
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Lee W, MVPTechnology and Business Process AdvisorCommented:
If you are not running 2008 R2 Enterprise or Data Center, you CANNOT see more than 32 GB of RAM.  2008 R2 Standard had a limit of 32 GB of RAM.  Nothing you can do other than to upgrade to 2012 (Standard or Enterprise), 2008R2 Enterprise, or 2008R2 Datacenter.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Miguel Angel Perez MuñozCommented:
What version of gest OS are you using? some of them has limits below 64Gb: http://msdn.microsoft.com/en-us/library/windows/desktop/aa366778(v=vs.85).aspx
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Upgrade your OS to an OS which supports more than 32GB of RAM.
Seth SimmonsSr. Systems AdministratorCommented:
I do can see all the RAM amount correctly in Control Panel>System in the VM...

going along with the other comments, i'm going to assume that it also says there "32GB usable" ?
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Microsoft Legacy OS

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.