Creating a VHD of your system serves as an excellent backup strategy. If your main system fails, you can mount the VHD and access files or boot directly from it.

If you require a permanent, fully licensed environment, the best approach is to build your own VHD using an official Windows 10 ISO.

Developers can use VHDs to test applications in isolated environments without affecting their main operating system. Microsoft offers pre-configured development VHDs for this purpose.

A VHD (or its newer counterpart, VHDX) is a file format that represents a virtual hard disk drive. It contains everything found on a physical hard drive, including the file system, disk partitions, the master boot record, and the Windows 10 operating system itself.

For most users: The Microsoft Dev Center VHDX is your safest, fastest option for testing.

Microsoft provides free, pre-configured virtual machine images for developers. These are valid for 90 days. Where to Download : Visit the Microsoft Edge Developer site (or search for "Windows 10 virtual machine download"). Select Edition