In Windows 8.1, Windows 8, Windows 7, Windows Vista, XP and Windows Server 2003, 2008, 2012, it is easy to the conversion of basic disk to dynamic disk, but convert/change a dynamic disk to basic disk very annoying, because in many cases "Revert to Basic Disk" option is greyed out in disk management, and can not revert back to a basic drive. When using DiskPart.exe tool in command line, it's requisite to clean all of volumes on the dynamic disk for the conversion. This topic is the summary about converting/reverting a dynamic disk to basic disk. There are the three ways to complete this work for you.
1. Convert a dynamic disk to basic disk via deleting all volumes on the dynamic disk.
2. Convert a dynamic disk to basic disk via using Partition Recovery Software.
3. Convert a dynamic disk to basic disk with NO DATA LOSS by using AOMEI Dynamic Disk Converter.
This way is the simplest and most commonly, and it most can not guarantee data security, so you need to back up all the data on all the volumes on the dynamic disk you want to convert to a basic disc.
After backing up data, delete all the volumes on the dynamic disc by using Windows Disk Management, and then revert/convert a dynamic disk to a basic disk.
Using DiskPart.exe in command line
The way only suit that there are multiple disks on your system, and you have to boot operating system on other disk to complete this conversion (The other disk means is that the disk you do not want to convert). The main reason is that the volume that the operating system lays can not be deleted. Otherwise, it isn't easy to back up dynamic disk, so you’d better employ like "Copy Dynamic Volume" tool to backup.
In this way, more complicated, work base on the first way, and it is still necessary to delete all the volumes on the dynamic disk. Use Partition Recovery software to assist you convert to basic disk. However, this recovery partition is at risk, but the advantage of the way is that the data not need to be backed up, because this partition deleted can be recovered by Partition Recovery Software.
Delete all the dynamic volumes on the disk via the first way, and convert the disk to basic, and then recover the previous deleted partition by using Partition Recovery Software.
If you have only a disk on your system, it is the conversion method that using Disk Editor Tool modifies the 0th sector of the dynamic disk. Specific method is as follows (here for example to modify the 0th sector by using WinHex:
First launch WinHex as Administrator Privilege, and open the dynamic disk which you want to convert, and jump to 0th sector as shown:
The 0th sector is end of the "55 AA". The above area highlighted is the partition table of the dynamic disk, and it begins of the offset 0x1BE, ends of 0x1FE, total 64 bytes. In order to convert dynamic disk to basic, we need to modify the part contents in this partition table.
How to modify? Please replace all the "42" to "07" on the above graph, and save the modification to OK. Restart your computer, you will find the disk to be converted to basic, and if you find individual partitions lost, please recover the losing partitions by using Partition Recovery Software. Note that if your operating system exists in extend partition(this is, operating system is a logical partition); please do not modify the partition table. Suppose that the partition table is modified, your operating system will not be booted on the next time.
The above two ways are relatively unsafe, complex and cumbersome. If you do not want to lose data or do these things manually, it is a good choice to use AOMEI Dynamic Disk Converter to realize dynamic disk conversion to basic disk. AOMEI Dynamic Disk Converter can directly and safely convert a dynamic disk back to basic disk without data loss, and also sector by sector clone spanned, striped, mirrored and RAID 5 volume on dynamic disk to a basic disk partition.
Fortunately, for a dynamic unreadable disk, invalid dynamic disk and missing disk can also be good to revert them to the basic disk and retrieve the data you desired. It's easy and efficient work in Windows 8.1, Windows 8, Windows 7, Vista, XP and Windows Server 2003, 2008, 2012!
Automatically and safely complete the conversion of the dynamic disk to basic disk with NO DATA LOSS via AOMEI Dynamic Disk Converter.
Basic Disk uses Partition Table to manage its partition. One Basic Disk contains primary partitions and extended partition, and many logical partitions are contained in extended partition. On Basic Disk, at most can have 4 the primary partition, and usually the best is 3. You can create an extended partition, and also set up unlimited logical partitions in extended partition.
To manage Basic Disk Partition, you could use AOMEI Partition Assistant, which is an ALL-IN-ONE partition manager software and basic disk management utility. It allows you to resize partition, extend system partition,merge partitions, split partition, copy disk and copy partition on basic disk storage type.
Dynamic Disk is a physical disk that manages its volumes by using LDM database. What is the LDM (Logical Disk Manager) database? It is a hidden database which size is 1MB at the end of the Dynamic Disk. The 1MB space holds some related information on each dynamic disk, such as Drive Letter, Volume Label, the begin sector of Volume, Volume size, the file system of Volume, and the current dynamic disk is which one and so on. On Dynamic Disk, the volumes are divided into Spanned Volume, Simple Volume, Striped Volume, Mirrored Volume and RAID5 Volume, there is no limit to the number of volumes.
To manage Dynamic Disk Volume, you could use AOMEI Dynamic Disk Manager, which is a complete solution for dynamic disk and dynamic volume management. It enables you to resize dynamic disk, extend dynamic system volume, increase mirrored (RAID 1) volume, expand RAID-5 volume, add drive to RAID and remove drive from RAID on dynamic disk storage type.