
If the unallocated space is available but not adjacent to the C drive (on the either left or right side), you can use the “Merge Partition” to directly combine non-adjacent unallocated space and C partition.ġ. Allocate free space from another partition to C drive Merge non-adjacent unallocated space into C drive

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Check them out and choose a proper method based on your situation. Moreover, it provides other 3 more flexible methods to increase space in c drive without formatting. Besides, its “ Resize Partition” feature of AOMEI Partition Assistant can increase C drive size with the right and left contiguous unallocated space. Compared with Disk Management, this software can extend both NTFS and FAT32 partition. 3 Ways: extend C drive space without formatting in WindowsĬonsidering the limitations of Disk Management, here we would like to share you with a versatile partition manager named AOMEI Partition Assistant Professional. ☞ Note: If you don't plan to change the size of partition C, you can take measures, like moving installed apps from C drive to D drive or another drive to free space on C drive. To avoid data loss, it's necessary to back up all data in the partition before deleting it. If there is no adjacent unallocated space next to the aim partition, you have to delete the adjacent partition (like D drive). However, the “Extend Volume” option is available only if there is unallocated space right behind the NTFS partition which you want to extend. But the D drive contains lots of important data I don't want to lose, So, does anyone know how to extend C drive in Windows 10 without formatting or deleting a second partition on the disk? Thanks!”įor extending C drive space, most of you might first consider using the “Extend Volume” feature of Windows Disk Management. I googled this problem and knew that I need to delete the next D partition.

But in Disk Management the "Extend Volume" is greyed out. So I want to add more space into it to extend the space of C drive. “I have 150 GB on my C drive, but now it is almost full, and my Windows 10 computer is slowing down now. "Can I extend C drive without formatting?"
