10qcow2 | Windows

Now run your VM using windows10_overlay1.qcow2 . To reset, just delete the overlay and create a new one.

A raw img file for Windows 10 would immediately consume 30-60 GB of disk space. A qcow2 file starts small (usually 1-2 GB) and grows dynamically as Windows writes data. For example, a fresh Windows 10 installation might report 20 GB used inside the guest, but the host file may only be 12 GB due to compression and sparse allocation. windows 10qcow2

QCOW2 files are easily moved between different Linux-based virtualization hosts. Now run your VM using windows10_overlay1

If you already have a Windows 10 VM in VirtualBox (VDI), VMware (VMDK), or Hyper-V (VHDX), you do not need to reinstall. or Hyper-V (VHDX)