They take up only as much physical space on your host machine as data currently stored inside the virtual machine, rather than the total capacity of the virtual disk.
: Look for images that have been "Sysprepped," which means they are generalized and will generate a new SID (Security Identifier) upon the first boot, preventing hardware ID conflicts. How to Use a QCOW2 Image
They take up only as much physical space on your host machine as data currently stored inside the virtual machine, rather than the total capacity of the virtual disk.
: Look for images that have been "Sysprepped," which means they are generalized and will generate a new SID (Security Identifier) upon the first boot, preventing hardware ID conflicts. How to Use a QCOW2 Image Windows Vista Qcow2 Download