Microsoft operating system virtualization products such as Virtual Server, Virtual PC, and Hyper-V support both dynamically-expanding and fixed-size virtual hard disks (VHDs). With the ...

Virtual machines are great for running another operating system on top of your desktop, like testing out Windows 8 or running OS X inside Windows. They can be notoriously slow, though, and using a ...

Chris: I created several virtual machines with pre-allocated virtual hard disk files. I did this because I had heard that performance was better. However, my system's hard drive is about out of space ...

Which virtual disk format (fixed, dynamic or pass-through) is the right choice for your environment? We've got answers and some great maintenance tips. Choosing the right format for the right scenario ...