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KB 100005: VhdxTool


VhxdTool is a command line utility for Windows for rapid creation and resizing of virtual disk files (VHDX). VhdxTool provides similar functionality to a former utility vhdtool for Windows Server 2008/R2, but whereas vhdtool worked with older (VHD) format, VhdxTool works with the new (VHDX) format.

Unlike Windows standard tools such as diskpart or New-VHD, and like a former vhdtool for VHD-files, this tool does not zero-out the newly created or resized VHDX-file. Please make sure you understand the implications of this technique as outlined in our blog-post.


1. Click on the "Download File" button on the left and save the file to a convenient location on your hard-drive.

2. Refer to the Release Notes for command line options.

3. Use command or powershell prompt to execute the commands.

System Requirements

Microsoft Windows, presumably Server 2012 or above

.NET Framework 4.5+

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