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Tuesday, August 10, 2010

Create a Faster Base image using WIM2VHD and VHDTool

Most of the time we need to create a base image when setup virtual machine. How i normally do this is using Hyper V, install an operating system and run sysprep command? But this process is taking quite a long time especially the duration to setup Windows Server 2008 R2 will take around 30 minute.
Now the question is, how to do it fast within 5 minute?

In this article, i will use Wim2vhd tool. In order to use Wim2VHD, you need to install WAIK for Windows 7. You can get WAIK from this link:-

Once you have install WAIK, download WIM2VHD from here:-
It is a small 103K file. Then put this into a folder.

Step 1:-
To execute, go to WAIK- Deployment tool Command prompt.

Step 2:-
Enter the following command to view the parameter. Just like a help syntax
"cscript WIN2VHD.wsf"

Example:- Create a base image Windows Server 2008 R2 Standard Edition

Is refer to the location of the install.wim which located in DVDROM

Is refer to Windows Server 2008 r2 Standard Edition

Additional /sku parameter:-

Here is the process of the snapshot:-

The tool will create a dynamic disk with default 40GB size. If you want, you can use additional parameter such as
a) /size:51200
To create 50GB partition

b) /disktype:fixed
To create fixed disk vhd. The option available is dynamic, fixed and fast fixed.

Example:- To create a fixed disk of Windows Server 2008 R2 Standard Edition with a size 50GB
C:\WIM>cscript WIM2VHD.wsf /wim:h:\sources\install.wim /sku:serverstandard /disktype:fixed /size:51200

The above command will take almost 15minute. In order to speed up the creation of 50GB fixed disk, i download VHDTool (Download from:- Put this tool inside the WIM2VHD folder and execute below command

C:\WIM>cscript WIM2VHD.wsf /wim:h:\sources\install.wim /sku:serverstandard /disktype:fastfixed /size:51200

Now, you can create 50GB fixed disk in 5 minute. Quite a useful tool and it's FREE!

Check out both tool to explore more cool stuff.


  1. This is cool, and this other product by Virsto (.com) software can create VMs in an instant as well as improve IO performance and reduce the VM footprint.

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