** The fully installed game requires at least 1.8 GB of free space in your internal storage. (windowspcdownload.com)
We say as long as you have a 20 GB of free space in your hard drive, you can enjoy the pleasure of having both operating systems on one PC. (thewindowsclub.com)
This boosts the amount of free space for most users to 30 GB. (androidcentral.com)