Windows 8 Disk Management

Every Windows PC has Disk Management, with which you can manage disk space. With development of Windows OS, Disk Management has more and more powerful function and features. Under Windows 8 Disk Management, you can perform following operations:

windows 8 disk management

  • Open volume
  • Explore volume
  • Mark partition as active
  • Change drive letter and paths
  • Format
  • Extend volume
  • Shrink volume
  • Add mirror
  • Delete volume
  • Checking Properties
  • View help information

Video guide - how to use Windows disk management to shrink, extend, delete, create partition

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Simplest way to open Disk Management on Windows 8: Right click "Computer" > click "Manage" > click "Disk Management

open windows 8 disk management

Open and Explore Volume under Windows 8 Disk Management

When you enter Windows 8 Disk Management on your computer, you can see all disk partitions. You just need to right click the partition you want to open and click "Open" option so as to open the selected volume under  Disk Management.

Right click a volume under Disk Management and then click "Explore" option so that you can explore any volume you want to access.

Windows 8 Changes Drive Letter and Paths in Disk Management

When you install a hard drive on your computer, you usually divided it into several partitions and assign different drive letters to each volume so that you can easily find the volume you want to access by viewing its drive letter. On Windows 8 operating system, you can change drive letter and paths anytime you like under Disk Management by following guide below:

1. Right click the volume you want to change its drive letter and paths and select "Change Drive Letter and Paths".

change drive letter and paths

2. Click "Change" button when the change drive letter and paths window pops up.

click change

3. Assign a different letter to the selected volume and click "OK".

assign a different drive letter.

It will pop up a warning dialog box to tell it might cause problem after changing drive letter, you just need to click "Yes" button to confirm to change drive letter.

change drive letter warning.

Windows 8 Format Delete Volume on Disk Management

You can also format or delete a volume under Disk Management in Windows 8. You just need to right click the volume you want to delete or format and then select "Delete" or "Format" option to perform the task.


1. When you delete a volume on Windows 8 Disk Management, all data stored on this volume will be erased immediately. The deleted volume will show as unallocated space on your computer.

2. When you format a volume under Disk Management in Windows 8, it will erase all data on the formatted partition. You can perform quick format or full format on the selected volume.

3. You cannot format or delete a system partition on Windows 8 Disk Management.

Shrink & Extend Volume with Disk Management Win8

Win8 operating system allows its users to shrink partition and extend partition under Disk Management.

To shrink a volume, you just need to right click the volume you want to shrink and then select "Shrink Volume" option.

shrink volume

To extend volume, you should make sure that there is contiguous unallocated space to the volume you want to extend. Then, right click this volume and click "Extend Volume" option.

extend volume

Usually, you may need to perform partition shrinking and extending when system partition is running out of disk space and Windows 8 reports low disk space warning message.

windows 8 low disk space

low disk space warning message

Manage Disk Space on Windows 8 with Freeware

There is free partition management software for Windows 8 to manage disk space, which is more powerful than Windows 8 built-in Disk Management. IM-Magic Partition Resizer Free is a freeware that is able to manage disk space by formatting partition, deleting partition, extending partition, shrinking partition, moving partition, and more. Therefore, you can use this free partition management software to manage disk space when Windows 8 Disk Management grayed out and stops working.

resize partition

Download IM-Magic Partition Resizer Free Edition

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