Use 45GB for Windows Vista SP2, hehe!
Use 45GB for Windows Vista SP2, hehe!
Windows adjusts its usage depending on available resources. It usually comes with a bigger installation because the operating system includes the paging file on the same partition as the OS, while Linux places it on a separate partition. I can't confirm this for Vista, but for Windows 7 it typically uses as little as 7 GB during setup. You can check by setting up a virtual machine with a 10 GB drive and installing Windows 7—then you'll likely see around 3 GB free.