'Extend Volume' option is available only if there is unallocated space behind the partition which you want to extend. You will learn how to merge other partitions into C drive for more space with the extend volume feature. 'Disk Copy' feature of iSumsoft Cloner has the ability to do it without reinstalling operating system and applications.ĭetailed steps: How to increase C disk space by adding a new hard drive (SSD/HDD) How to Extend C Drive in Windows 10 with Windows Built-in Tools If you have other hard drives in your hand, just add a new hard drive and clone/copy system data and files to the new hard disk. There are three ways to extend C volume without data loss: Windows built-in Disk Management, Diskpart.exe, and iSumsoft Cloner. You can expand a volume by adding space from one or more other disks. To fix this, you need to increase the system partition size.
When the C drive runs out of disk space, it turns red and the computer frequently prompts you for insufficient disk space on the local disk (C:). How to Extend C Drive in Windows 10 without Formatting