Nobody wants to see this warning message showing on the screen: “You are running out of disk space on Windows (C:).”, especially when some programs really need to install on the C drive. This pesky issue bothers those who live on computer or can’t work without computers. Thus, extend C drive may become the first idea to pop out in your mind.
Why is the extend volume greyed out?
You open the Disk Management and right click the C partition, find the “Extend Volume” option, question appears: the option is greyed out. Why the operation is not allowed in Disk Management?
- Your disk doesn’t have any unallocated space.
- The unallocated space doesn’t follow the drive you wish to enlarge.
- Only RAW or NTFS drive can be extend.
So, with Disk Management, you need to create an unallocated space which is just right behind the drive that requires more space. For example, if the low space drive is C drive, first, you need to delete or move all data on the D drive, and then, make it an unallocated space, then you might try to see if the “Extend Volume” is applicable or not.
Different methods to extend C drive in Windows 10
If you extend C drive with the way we mentioned above, congratulations, because many people can’t successfully enlarge their C drive with Disk Management. Therefore, a convenient software will be a great choice, AOMEI Partition Assistant is just what you are looking for.
This powerful partition manager can help you build the hard drive with your personal needs, you can freely resize, delete and format or wipe a partition, crea+te new one, clone drive or the whole disk, or even migrate OS.
Like we said, only RAW or NTFS can be extended with Windows tool, this multifunctional tool can convert file system between FAT32 and NTFS, and even could convert your system/data disk between MBR and GPT partition styles.
Now, let’s see what this reliable and versatile software can do to extend your C drive.
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1. Use unallocated space not show on the right side
Notes:
- The disk does have an unallocated space.
- All programs are closed down.
- Steady power supply.
Step 1. Install and launch AOMEI Partition Assistant Standard, and right click the C drive and select “Merge Partitions” function.
Step 2. Choose the unallocated space and click “OK”.
Step 3. Click “Apply” to commit the operation.
Then, you can open “This computer” to check.
2. Allocate free space
What if there’s no any unallocated space but your D drive or other drive has free space? How about shrink some space to the C drive? Partition Assistant can directly extend partition in Windows 10 by using the free space shrink from the other drive via its “Allocate Free Space” function.
Step 1. Install AOMEI Partition Assistant Professional edition. Right click the partition which you want to allocate free space from and select “Allocate Free Space”.
Step 2. In a pop-up window, type in the size of the free space which you want to cut from D partition and this free space will be directly added into the destination partition.
Step 3. Click “Apply” to execute this operation. In the pop-out window, you can see how much time it will cost you to finish this operation. You can also tick “Check partitions before execution” to go through the partition in case of any error in it. In default, this option is ticked.
Wait until it finishes. Then, close the program to exit.
See? These two methods only need 3 steps to finish expansion. Safely, quickly, and easily!
Besides these two ways, you can also move installed programs from C drive to other location, or migrate OS to release free space.
Leave the disk and drive issues to AOMEI Partition Assistant, a professional disk manager to help you solve hard drive problems and keep it safe.
