FAT32 has the limitations on partition size of 32GB, so NTFS partition becomes the default file system in Windows 10, extend volume option in Windows Disk management sometimes greyed out while no continues unallocated space to the partition we want to extend, always the system partition, low disk space warning message always happen to C Drive.
Windows 10 partition software, Macrorit Partition Expert can extend NTFS partition without data loss even when "Extend Volume " fails on extension in disk management, this partition software is all-in-one tool that enables you to management every operation with ease, US National Industrial–level Security Program: disaster-recovery program will also help you on disk data.
Many users may have VMware with multiple systems in, it's easily to found the partition with VMware files running out space after taking some snapshots of VMware system, so 32G FAT32 partition size limitation will not suit them, they are creating partition with NTFS file system at the very beginning of using server disk.
Extending NTFS partition, however, becomes anther headache after low disk space warning hits on the particular partition. The thing is, it's not difficult but troublesome to extend NTFS partition in disk management: backup, delete, and goes to extend step, those steps took so much time and there's not enough free space in other partition can take the backup file, even the compressed file of VMware folder.
Simplified Steps to extend NTFS partition in Windows 10 are as followed:
Don't forget to click Commit in the main interface, or all the steps are just preview on extending NTFS partition. Talking about the preview function, this system utility shows how it work step by step according to the pending operations on the left bottom column, you can undo each step and redistribute disk space.
Free partition size doesn't come out of air; it comes from other partitions with much spare space available, so in order to complete the extension job, we have to shrink partition on large capacity volume. Shrink Volume can be done in Disk Management, the effect is not intuitive, you can just type in volume size but you cannot see what it look like after resized.
Steps on how to shrink NTFS partition in disk management:
Steps to shrink partition using Partition Software:
Resize/Move Volume is the core program in Partition Expert, with this highly integrated function, you can easily shrink volume, extend volume and move partition; you can also redistribute disk space from the end of disk to the head of it without losing data. When you launch Partition Expert, there're more functions listed to optimize disk performance.