Disk Management is the built-in Windows 11 tool for viewing disks, partitions, drive letters, and unallocated space. The fastest way to open it is to right-click the Start button and select Disk Management. You can also find it through Search, open it with the diskmgmt.msc command, or reach it through Computer Management.
Tutorial – How to Open Disk Management in Windows 11
For most people, the Start button menu is the quickest method.
Step 1: Right-click the Start button
Right-click the Start button on the taskbar. You can also press Windows + X to open the same menu.
Step 2: Select Disk Management
Choose Disk Management from the menu.
Step 3: Wait for Windows to load your drives
The Disk Management window should open after a moment and display the storage devices Windows can detect. You can view your disks and volumes without making any changes.
Simply opening Disk Management does not alter your files or partitions. The risk comes from actions such as formatting a volume, deleting a volume, initializing a disk, or changing the partition layout, so make sure you understand a command before confirming it.
How to Find Disk Management with Windows Search
Search is useful if you do not see Disk Management in the Start button menu or simply prefer typing the name of a tool.
- Click Search on the taskbar or press the Windows key.
- Type Disk Management.
- Select Create and format hard disk partitions from the search results.
The wording in Search can be a little confusing because Windows may not label the result simply as “Disk Management.” Create and format hard disk partitions opens the same Disk Management console.
Open Disk Management with the Run Command
The Run command provides a direct way to start the utility.
- Press Windows + R.
- Type
diskmgmt.msc. - Press Enter or click OK.
You can also run diskmgmt.msc from Command Prompt, PowerShell, or Windows Terminal.
Open Disk Management from Computer Management
Computer Management includes several administrative tools in a single window, such as Disk Management.
- Right-click Start.
- Select Computer Management.
- Expand Storage in the left column if necessary.
- Select Disk Management.
This route takes a little longer, but it is convenient when you are already using Computer Management for another administrative task.
What You See in Disk Management
Disk Management presents your storage in two main views. The upper section lists volumes, including drive letter, file system, status, capacity, and free space. The lower section shows each physical disk and how its space is divided into partitions or unallocated areas.
The lower view is especially helpful when you are trying to determine whether two drive letters are on the same physical disk, whether a disk contains unallocated space, or where a recovery or system partition is located in the layout.
Windows normally shows unallocated space as an area that is not currently assigned to a volume. You may be able to use that space to create a new volume or, in some situations, extend an existing one. Whether a volume can be extended depends on the disk layout and other requirements, so do not assume any unallocated space can be added to any partition.
What Can You Do with Disk Management?
Disk Management handles many common storage tasks without requiring another program. Depending on the disk and volume involved, you can use it to initialize a new disk, create and format volumes, assign or change drive letters, shrink volumes, extend supported volumes, and delete volumes.
These actions are more consequential than simply opening the utility. If a disk contains important files, make a current backup before changing its partitions or formatting a volume. Do not experiment with EFI, Recovery, OEM, or other unfamiliar system partitions.
What If a New Drive Says Not Initialized?
A brand-new drive may appear in Disk Management as Not Initialized. Initializing a genuinely new, empty disk is normally part of preparing it for use. Windows may ask you to choose a partition style before you can create a volume.
Be more cautious if an older drive that previously contained files suddenly appears as Not Initialized, RAW, or unallocated. Do not immediately initialize, format, or create a new volume on it. Those symptoms can indicate partition damage, connection problems, or another issue where preserving the existing data should come first.
What If a Drive Is Missing from Disk Management?
If a drive does not appear in File Explorer but does appear in Disk Management, check whether it is offline, lacks a drive letter, is unallocated, or uses a file system Windows cannot mount normally.
If the physical drive is missing from Disk Management entirely, the problem may be outside the partition layout. Check the connection, the USB cable or enclosure (if applicable), Device Manager, and whether the drive is detected by the computer’s firmware. Disk Management cannot partition a drive that Windows does not detect.
Be Careful Before Formatting or Deleting a Volume
Disk Management makes some destructive commands easy to reach. Formatting a volume erases the files stored on it, while deleting a volume removes it from the disk layout. Partition changes can also make data inaccessible if the wrong disk or volume is selected.
Before making a storage change, confirm the disk number, capacity, drive letter, volume label, and other identifying details. If BitLocker or device encryption is involved, make sure you have any recovery information you may need before making significant disk changes.
Frequently Asked Questions
What is the fastest way to open Disk Management in Windows 11?
Right-click Start and select Disk Management. Pressing Windows + X opens the same menu from the keyboard.
What is the Disk Management Run command?
Press Windows + R, enter diskmgmt.msc, and press Enter.
Why does Windows Search say “Create and format hard disk partitions”?
That search result is the Windows entry for Disk Management. Selecting it opens the Disk Management console.
Is it safe to open Disk Management?
Yes. Opening Disk Management and viewing the disk layout does not change your files. Be careful with commands that format, delete, initialize, shrink, or otherwise modify disks and volumes.
Can Disk Management create a new partition?
Yes. If suitable unallocated space is available, Disk Management can create a new simple volume and format it for use.
Can Disk Management change a drive letter?
Yes. Disk Management can assign or change drive letters for many volumes. Avoid casually changing the drive letter of a volume used by installed programs because existing paths may stop working.
Why can’t I extend a volume even though I have unallocated space?
Windows has restrictions on which volumes can be extended and where usable unallocated space must be located. The exact answer depends on the partition layout, file system, and disk type.
Summary
- Right-click Start or press Windows + X.
- Select Disk Management.
- Alternatively, search for Disk Management and choose Create and format hard disk partitions.
- You can also press Windows + R and run
diskmgmt.msc. - Use Disk Management to inspect your disk layout before making any changes.
For most Windows 11 users, right-clicking Start is the simplest way to reach Disk Management. Once it opens, take a moment to identify the correct disk and volume before using any option that changes the storage layout.
Matthew Burleigh has been writing tech tutorials since 2008. His writing has appeared on dozens of different websites and been read over 50 million times.
After receiving his Bachelor’s and Master’s degrees in Computer Science he spent several years working in IT management for small businesses. However, he now works full time writing content online and creating websites.
His main writing topics include iPhones, Microsoft Office, Google Apps, Android, and Photoshop, but he has also written about many other tech topics as well.