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Answers: What is Foreign Dynamic Disk and How to Fix it

Posted on Jan 18, 2018 by Brithny to Partition Manager

Does your dynamic disk show up as foreign status? Do not worry! This page will let you know what is foreign dynamic disk and two ways to access and fix the foreign dynamic disk. Read this page and learn more details.

Help, Dynamic Disk Shows Foreign!

"Yesterday I took a dynamic disk out from an old computer to my one. Unfortunately, I can't see my data on the dynamic disk. Besides, when I click the dynamic disk in Disk Manager, it shows "foreign". Is there anybody can tell me what's going on? How can I access the disk and fix foreign dynamic disk? Thanks in advance."

dynamic disk is showing foreign

What is Foreign Dynamic Disk and Why is Dynamic Disk Showing Foreign?

When you move a dynamic disk from one computer to another one which does not support dynamic disk, such as all Windows home editions, and then the dynamic disk created on the previous computer will be flagged as a foreign disk in Disk Manager. Besides, if your computer is dual-boot and one of the operating system does not support dynamic disk, the status of the disk will also be shown as a foreign disk. The following two points may explain why the dynamic disk is showing foreign:

  • The dynamic disk comes from another computer installing Windows 2000, Windows XP 64-bit Edition (Itanium), Windows XP Professional or Windows Server 2003 family Operating System.
  • Computers are configured to dual-boot with Windows XP Home Edition and another Operating system (such as Windows 2000 Professional or Windows XP Professional) that uses dynamic disks, which are not supported on Windows XP Home Edition or on portable computers.

Two Ways to Access and Fix Foreign Dynamic Disk Easily

In fact, if your dynamic disk is showing foreign, the data on the disk is still there. The data is just invisible. To fix this, you must follow the two ways below.

1. Import the foreign disk

To access data on the disk, you must add the disk to your computer's system configuration. In Disk Management, right-click the foreign disk and select "Import Foreign Disks". After that, any existing volumes on the foreign disk become visible and accessible. 

2. Convert Foreign Dynamic Disk to Basic Disk

As we know, some versions of Windows cannot access the dynamic disk, so you need to convert the foreign dynamic disk to basic by right click the foreign disk and select "Convert to Basic Disk". This operation will wipe out all the data on the disk. If you want to convert dynamic disk to basic without data loss, please read on.

EaseUS Partition Master can change dynamic disk containing simple volumes into a basic disk directly.

1. Choose right edition of EaseUS Partition Master and install it. After that, launch EaseUS Partition Master.

2. Select the dynamic disk which you want to Convert to basic disk on the disk map, click "Disk" on the main menu and choose "Convert to basic disk" or right-click the dynamic disk and choose "Convert to basic disk".

convert foreign dynamic disk to basic

3. Click "Apply" to convert dynamic disk to basic disk. After EaseUS Partition Master applies these changes, you will see the dynamic disk has become basic disk in Windows Disk Management.

If you want to know more details, you can refer to change dynamic disk to basic disk safely and easily without losing data.