I have a 1Tb hard drive running on a Windows 10, 64bit machine. I want to partition the Drive. I clicked through "File Explorer" to get to "Disk Management". At the "Disk Management" window, a "Disk 0 Basic" is displayed showing 931Gb (with partitions of 300Mb recovery, 99Mb EFI system, 930Gb boot, etc, and another 450Gb recovery). If I am reading the instructive article "How to make Partitions in Windows 10" correctly, I should click on the "NTFS" section and "Shrink Volume". I do want to leave enough room for upgrades, etc. to the Windows software. I also planned on creating a partition just for non MS software (such as games and Wordperfect and so on). Then using the remainder for data. Am I correct in choosing the NTFS segment and what is a reasonable size to shrink to (the shrink function suggests 464Gb) ?