How to Convert Dynamic Disk to Basic using CMD?
You can convert dynamic disk to basic using CMD (Command Prompt), if you encounter issues, such as can’t install Windows on a dynamic disk, invalid disk, etc.
“There are three hard disks on my laptop: one 500GB basic disk that contains Windows 10, two 1TB dynamic disks. Now, I want to convert one dynamic disk to basic. Is it possible to complete disk conversion from dynamic to basic using CMD? How to do it?
If the dynamic disk is not unallocated (without any volumes), you can directly convert it back to basic. If there are volumes on the dynamic disk, you need to delete all volumes at first and then you can convert the disk to dynamic. Otherwise, you will encounter the error: The disk is not empty when you convert disk into basic using CMD.
Check out the following steps on how to convert a basic disk to dynamic disk using CMD in Windows 10/8/7, when the dynamic disk contains volumes.
Warning: “delete volume” command will erase all data on the volume; if you don’t want to suffer from data loss, you can back up important data in advance. Or you can turn to third-party software to convert dynamic into basic without losing data.
Step 1. In search box, type “cmd” and right-click Command Prmopt and choose Run as administrator.
Step 2. Type the commands given below and press Enter key after typing each command.
After you see Diskpart successfully converted the selected disk to basic format message, input exit to close this window.
PS.：When there is more than one volume on the dynamic disk, repeat select volume m and delete volume to delete all volumes on the dynamic disk.
You can use CMD to convert dynamic disk to basic, but it can make all data gone. To avoid data loss, you need to back up data and then restore the data after converting. The process can be a lit bit complicated and cumbersome. What’s more, if the dynamic disk contains OS, you won’t be able to delete system volume when the system is running.
It can work under Windows 10/8.1/8/7, XP, and Vista. When you are a Server user, please employ AOMEI Partition Assistant Server, which can be used under Windows Server 2019/2016/2012 (R2)/2008 (R2)/2003 and so on. Now, see how to use it to convert dynamic disk into basic without volume deletion in Windows 10/8/7.
Step 1. Install and run AOMEI Partition Assistant Professional. Click All Tools and Dynamic Disk Converter.
Step 2. Choose one between Convert a dynamic disk back to basic disk and Convert any dynamic disk volume to basic partition and click Next.
Step 3. Select the dynamic disk that you want to convert to basic disk. Then, click Next and Proceed.
Step 4. When the conversion is completed, click OK to restart your computer and then you can see that the disk has been converted to basic.
Further reading: About basic disk and dynamic disk
All the above content has demonstrated how to convert dynamic disk into basic using CMD or third-party software AOMEI Partition Assistant Professional. Here will show you the differences between dynamic and basic disk and when you can convert disk between basic and dynamic.
In a nutshell, if your OS supports dynamic disk and you need to merge multiple unallocated spaces from different physical disks, create a copy of data in mirrored volume, improve disk performance with striped volume, and so on, it’s not a bad choice to convert basic disk into dynamic.
When your basic disk contains partitions that will be nonfunctional after conversion, such as OEM partition, when you need to install OS on the basic disk, when there are two or multiple boot environments on your disk, it’s not recommended you to convert it from basic into dynamic. If you have accidentally converted a basic disk into dynamic, you can convert it back to basic using CMD or AOMEI Partition Assistant Professional based on your specific situation.