Answers: What is Foreign Dynamic Disk and How to Fix

Brithny updated on Sep 23, 2019 to Partition Manager | How-to Articles

"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 systems 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.

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 Windows 10 is supported

 

Step 1: Install and open EaseUS Partition Master on your Windows computer by clicking the download button.

EaseUS Partition Manager software

Step 2: Select dynamic disk which you want to convert to basic. Right-click it and choose "Convert to Basic".

convert dynamic to basic

Step 3: Click "OK" on the pop-up window and you will add this conversion to the pending operations.

convert dynamic to basic

Step 4: Click the "Execute 1 Operation" button at the top-left corner and "Apply" to begin to convert dynamic to basic disk. After that, you can also use this partition manager to resize/move, clone, merge, format, and delete the partitions. 

convert basic to dynamic
 
 

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Frequently Asked Questions

Why Choose EaseUS Partition Master?

"I've used Partition Master Professional many times to create, delete, format, move, rename, and resize partitions."PCWorld

"Partitioning tools have come a very long since the days of complicated command line utilities and EASEUS Partition Master is one of the most advanced programs available."TECH ADVISOR

"I love that the changes you make with EaseUS Partition Master Free aren't immediately applied to the disks. It makes it way easier to play out what will happen after you've made all the changes."Lifewire

Will the "Migrate OS" feature transfer the Windows system files only or the whole C drive?

To ensure that the migrated system will boot normally, the Migrate OS feature will transfer all the files in the system and the boot partitions. Generally, the boot partition is the C drive so the transfer will include all the files in C.

Does EaseUS Partition Master license apply to multiple computers?

The license of Partition Master Professional and Server editions can be used on 1 computer only, while that for for the Technician and Unlimited editions can be used on multiple machines.

What is the difference between EaseUS Partition Master Trial version and the Free version?

Free is for home users only, with most basic functions available such as partition resize and clone. While trial can help you understand how this product works and test what a full license can do on a business or server OS machine.

Will it cause any data loss after resizing the partition in EaseUS Partition Master?

Generally, it will not cause any data loss or boot issue by resizing a partition. However, in order to protect your data, we suggest that you backup the partition before resizing, in case of any unexpected situations such as power outages, computer hardware failures, etc. You can use EaseUS Todo Backup to backup the partition and its trial version is fully functioned for 30 days.

What should I prepare before resizing the partition?

On the partition that is going to be operated, there might be some files being occupied by other programs. To ensure a successful operation, we suggest that you close all the unnecessary software before resizing that partition. Otherwise, EaseUS Partition Master will detect the partition being locked by the other software and require a reboot to resize the partition under boot mode.

About EaseUS Partition Master

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