: QCOW2 files only take up the space actually used by the Windows OS, not the full size of the virtual hard drive.

You cannot "run" the OS directly inside Google Drive. You must download it or stream it.

Typically, strings like this are:

If you have created your own Windows 10 VM image and want to store it for free: Google Drive for Desktop : Install the Google Drive desktop app and move your file into the "My Drive" folder. Automated Backups : Use third-party tools like Iperius Backup