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How to Convert Basic Disk to Dynamic Disk in Windows Server 2012/2016/2008

How to convert basic disk to dynamic disk in Windows Server?

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Updated by

Tracy King

Updated on May 10, 2024

Should I Convert to Dynamic Disk in Windows Server?

What does convert to dynamic disk mean? Stay here to check the difference between basic disk and dynamic disk.

Workable Solutions Step-by-step Troubleshooting
Method 1. Using Third-Party Software to Convert to Dynamic (No data loss) Directly click "Convert Basic to Dynamic"...Full steps
Method 2. Convert to Dynamic Disk with Disk Management Back up data first > Open Disk Management...Full steps
Method 3. Convert Basic Disk to Dynamic Disk Using CMD May cause data loss, back up data > Open...Full steps

The basic disk supports all Windows operating systems, from MS-DOS to Windows Server 2019. It is the most common storage type of Windows and contains primary partitions and logical partitions. MBR and GPT partition styles are supported. 

Dynamic disks support Windows Server OS, Windows 10/8.1/8/7, XP, Vista, and Windows 2000. Different from the basic disk. It uses a hidden logical disk manager or virtual disk service to keep track of information. It allows you to share data between two or more disks. 

After converting a basic disk to a dynamic disk, you can create different types of volumes on the dynamic disk, such as simple volumes, cross-area volumes, striped volumes, mirrored volumes, and RAID-5. By building other dynamic volumes, users can protect data, fully utilize disk space, and speed up data storage. 

So, how to convert basic disk to dynamic disk in Windows Server computer? You can have three useful options - the first two are built-in tools for Windows, the other is professional third-party software.

Three Ways to Convert Basic Disk to Dynamic Disk in Windows Server

To change to a dynamic disk, you can choose one of the solutions that comfort you the most.

Wait!!! Check a list of restrictions before converting to dynamic. 
  • Windows OS, like Windows 10, can not install Windows OS on the dynamic disk. 
  • OEM partition may turn non-functional after converting disk - Because most vendors' OEM sections match disk types, attributes, and partition layouts. Any changes such as copying, moving partitions, or converting disks may affect the partition's functions. 

Method 1. Using Third-Party Software to Convert to Dynamic

Data loss will happen if you are using disk management and Command. Then you have to keep your data safe first. Why not skip that two tools and use another software? It would be best to have third-party software convert basic disk to dynamic disk without data loss.  

EaseUS Partition Master lets you convert to dynamic easily or convert dynamic disk to basic. It performs to manage disk, including resize, delete, merge partitions, migrate OS to another drive.

Download EaseUS Partition Master, start converting in 4 Steps:

EaseUS Partition Master Enterprise


Your trustworthy Windows Server disk manager.

Extend System drive, combine/split partitions.
Clone disk, migrate OS to HDD/SSD.
Convert MBR to GPT, GPT to MBR, no data loss.
1-click adjust disk layout, create volumes at one time.

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How to Convert to Dynamic Disk in Windows Server 2012/2016/2008:

Step 1. Install and open EaseUS Partition Master and go to Disk Converter.

Step 2. Select the disk conversion mode that suits your need:

  • Convert Basic to Dynamic: change a Basic disk to Dynamic.
  • Convert Dynamic to Basic: change a Dynamic disk to Basic.

Step 3. Select the target disk - Basic or Dynamic, confirm you've select the correct disk and click "Convert" to start.

0:00 - 0:18 Convert Basic to Dynamic Disk; 0:19- 0:36 Convert Dynamic to Basic Disk.

Method 2. Convert to Dynamic Disk with Disk Management

Back up data first. Watch out for data loss.

Step 1. Open Disk Management in the following two ways.

Right-click Windows Start icon and choose Disk Management.

Or, press Windows + R to open Run dialog > Type diskmgmt.msc > Click OK.

Step 2. Now you can see the existing hard drives. Right-click the Basic disk you want to convert and select "Convert to Dynamic Disk..." from the list.

convert basic to dynamic in disk management

Step 3. Then a new window will appear, select disk, and click OK.

select convert

Step 4. Confirm the selected disk is correct. Press "Convert."

confirm convert

Step 5. Check the warning info and click Yes.

Note: Make sure you DO NOT NEED to install Windows OS on this disk. 

warning convert

Method 3. Convert Basic Disk to Dynamic Disk Using CMD

The Command could cause data loss. Back up important files first.

Step 1. Type Command Prompt on the search bar and click to run it.

Step 2. Input Diskpart and press Enter.

Step 3. Input commands:

lisk disk

select disk n

Convert dynamic

Step 4. Enter exit and hit Enter.

Bonus Tip: Convert to Dynamic Disk Greyed Out in Windows Server

Disk Management cannot convert an MBR disk that exceeds 2TB to a dynamic disk. If you encounter a "Convert to Dynamic Disk Greyed Out" issue, you need to convert MBR to GPT. But we don't recommend using disk management to do the mission because it would ask to delete all partitions on the disk. To protect your data, you can use EaseUS Partition Master, aka partitions converter, to convert MBR to GPT on Server PC.

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Windows Server - Convert to Dynamic Disk Easily!

This article collected three valuable methods to convert basic disk to dynamic disk. Run with EaseUS Partition Master. Then the disk will turn to a dynamic disk quickly. You can also choose other two ways. Please make sure you've backed up all data to avoid unexpected data loss.

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About the Author

Updated by Tracy King

Tracy became a member of the EaseUS content team in 2013. Being a technical writer for over 10 years, she is enthusiastic about sharing tips to assist readers in resolving complex issues in disk management, file transfer, PC & Mac performance optimization, etc., like an expert.

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Product Reviews

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