Freeing memory for Hyper-V VMs on Windows 8/8.1

Alexander Miloev takes us through an interesting exercise in tuning the memory for Windows client Hyper-V. Sometimes when I try to start a VM on my Windows 8.1 laptop, I get an error message saying that there is not enough free memory to match the start-up RAM of my VM: On a “normal” Hyper-V server,…


The Ghosts that Haunt Hyper-V

Summary:  If you’re trying to bind a virtual switch to a wired or wireless network within your Hyper-V environment and get some pesky error that prevents you from doing so, you may have an issue with ghosted network adapters lingering within your system.  Fortunately, our resident Hyper-V ghostbuster Gregg O’Brien, a Microsoft Premier Field Engineer…


Hyper-V: Virtual Machines Freeze at 10% When Starting Up

Summary: Gregg O’Brien, Microsoft Premier Field Engineer from Canada, faces a problem with some Hyper-V guests, and troubleshoots it. Spoiler: He fixes it. Recently I was working in my lab to test a configuration I was working on with a customer. I opened the Hyper-V Management Console and started a series of virtual machines. The…


Build an isolated Hyper-V test lab on a Windows 8 machine!

Windows 8 replaces the older Virtual PC technology with Hyper-V, for a full-featured virtual machine manager, and this allows for some really interesting new networking scenarios. Over at AskPFEPlat, Mike Leary posted a quick guide to setting up a Hyper-V isolated network for testing, on a Windows 8 box. Why focus on a Windows 8…


Headless installation of Windows Server 2012 Essentials

Tobias Hertkorn, one of our Microsoft Premier Field Engineers from Germany would like to share with you his tips on installing Windows 2012 Essentials, using a neat little trick and help from Hyper-V.   The trick Headless installation can be cumbersome and nerve-wrecking. “Did it boot from my USB stick correctly?”, “Is it hanging somewhere…


Windows Server 2012 Hyper-V Replica: How Troubleshoot Kerberos Error 0x8009030C 0x00002EFE

Windows Server 2012 Hyper-V Replica is a great new feature that replicates all changes on a virtual machine to a counterpart virtual machine hosted by a different server.  Basically, any server workload that’s virtualized in Hyper-V can be replicated, and it works with standalone servers, failover clusters, or a mixture of both.  As an added…


Virtual Machine Network Monitoring the Easy Way, with Hyper-V in Windows Server 2012

Gregg O’Brien is a Microsoft Premier Field Engineer from Canada, where French people are readily available. The Challenge: Capturing Traffic Across VMs There comes a point in the life of every server administrator where they must take a look at what is happening on the network. Complex multi-tiered systems and fancy network gear can often…


VDI: Want to jam more virtual hosts in?

What can be said about Jeff Stokes (Dude, where’s my PFE!?) that hasn’t been said before? My money’s on “he’s a beautiful baby sea cucumber.” Actually, I can’t prove that’s never been said, I just suspect not. Strongly. Anyway, Jeff wants you to be able to squeeze even more virtual desktops into your Virtual Desktop…


How to: Ensure Hyper-V live migrations move at “Warp Speed!”

David Hail over at the PFE Virtualization Blog notes a correlation between BIOS power state settings (c-states) and Hyper-V performance during live migrations: How long does it take for you to do a live migration between hosts? I ask that of all the customers I talk to that are using Hyper-V. If your answer is…


RemoteFX (with Hyper-V) is a serious business tool. For games.

The Setup My downstairs PC (on the dining room table) is an HP Touchsmart all-in-one Core 2 Duo Intel Integrated Graphics 965-based box, which makes it absolutely abominable for games. Upstairs, my internet connection plugs into my Hyper-V host (actually, a TMG instance on it), and I’ve a sort-of-gaming PC set up next to that,…