How to reallocate Disk Space windows 10?

There are a few ways to reallocate disk space on Windows 10. One way is to use the Disk Management tool. Another way is to use Windows PowerShell.

Disk Management Tool in Windows 10

Close all programs that are running, especially backup or anti-virus program before proceeding with the operation.

1. Press Windows + X to open power user menu and select Disk management.
2. In the Disk management window, right click the disk you need to shrink and select Shrink volume.
3. In the pop up window, select the size of unallocated space you want to shrink and click on Shrink button.

With Windows PowerShell

1. Open Windows PowerShell as administrator.
2. Type the following command and press Enter: Get-Partition. This will list all partitions on the computer.
3. Find the drive letter for the disk you want to shrink and note the PartitionNumber (e.g. Partition 3). This information will be used in Step 5.
4. Type the following command and press Enter: shrinkdrive C: -size 1TB. This will shrink the C: drive by 1TB. Substitute the C: with the letter of your drive if it is not C.
5. Type the following command and press Enter: cleanmgr.exe /sageset:11. This will open Disk Cleanup Settings.
6. Type the number for the disk you want to shrink or press Enter to select all disks and click OK.
7. Click Clean up system files button to complete the process.

Note: This option is very useful especially when your hard drive runs out of space and you desperately need more disk space. However, there is a chance of losing data in the unallocated space. Thus it’s advisable to backup your important data before proceeding with this option.