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Simple Vhd Manager is a tiny portable tool which makes it easier to access and use virtual drives (VHD, VHDX) in Windows 7 and later.
Drag and drop your VHDs onto the program and they appear in a list. Right-click your preferred file and you're able to attach the VHD, making it accessible in Explorer (you can change its drive letter if the default isn't suitable).
There's an option to add a VHD to your boot menu. If you'd like to try out a new operating system, for instance, you could install it on a VHD, then boot directly from the file, no need to mess around with drive partitions.
Although Simple Vhd Manager is portable, it maintains your file list and configuration in an INI file, and can boot with Windows, ensuring your changes persist across sessions.
Alternatively, experts can use the program's command line interface to attach or detach VHDs from their own scripts.
Freeware
http://www.downloadcrew.com/article/33674-simple_vhd_manager
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Improve the way you work with Microsoft's Hyper-V products with the help of this straightforward utility that allows you to resize .vhd files with just a few clicks.
Freeware
https://www.bursky.net/index.php/2013/02/resize-vhd-volumesize/