Windows Server 2012 upgrade to 2012 R2

 

 

I have been wanting to upgrade my Windows Server 2012 to Windows Server 2012 R2. Today I decided to see how hard it would be to do an inplace upgrade of one of my Windows 2012 RTM VMs to R2. The only error I ran into was: System devices: Microsoft Hyper-V S3 Cap  (Microsoft emulated s3 device cap) which was very easy to fix. I just had to disable it in Device Manager and after that, it worked perfectly.

My VM server configuration is as follows:

10GB ram

2 VHDs

4 Virtual Processors

Supprising enough it was very simple. I did get a warning:

These devices might not work properly in Windows. We recommend updating the drivers for these devices before you continue.

System devices: Microsoft Hyper-V S3 Cap

This has caused problems before in upgrade from Windows 2008 R2 to 2012 so I went into Device manager under System Devices and disabled this device and had a flawless upgrade. It is rare to have a server upgrade so easy, but then this is just my experience, and yours may be different.

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