You can save the "state" of your Windows 10 VM before making risky registry changes or installing updates. If something breaks, you can revert in seconds.
You can encrypt the disk image at the host level, adding a layer of security to your Windows 10 data. How to Create a Windows 10 QCOW2 Image windows 10qcow2
While you can download pre-made images from some cloud providers, creating your own ensures you have a clean, secure installation. 1. Prepare the Windows 10 ISO You can save the "state" of your Windows
Safely test code in an isolated Windows environment on a Linux workstation. windows 10qcow2