Solution to non-expanding Dynamic Virtual Disks

I had been happily using my dev virtual machine for a while, and suddenly while installing a service pack, it reported a lack of space. Now I was under the impression that Dynamically expanding disks, expand automatically, however that is unfortunately not the case. I binged for a solution and what a sweet one it is.

The guys at VMToolKit have just the solution. They provide a simple tool called VHD Resizer which does the job of re-sizing the VHD disk. It creates a copy of the disk and allows you to specify how large a disk you require.

One thing you need to note, once you’ve got it working on your VHD, you will notice that the size of the file on disk is the same as the original. What you need to do is get into the VM and then use Disk Management tools under Win7 click on partition and basically choose Extend Volume that’s it you’re done with a new expanded, re-sized VHD. BTW did I mention I love Windows 7 and the makers of VMToolKit 🙂


About sanjayshetty

Sanjay Shetty is currently putting the finishing touches on his book, the Brand Advocacy quick start guide, which covers his framework for building a brand advocacy program. He blogs at
This entry was posted in Computers and Internet. Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s