Method 1: Use Windows Disk Management to Convert
Step 1. Run diskmgmt.msc to load Disk Management directly, or you can right-click "My Computer/This PC", select "Manage" - "Storage" - "Disk Management".
Step 2. Right-click on a dynamic volume and choose Delete Volume… Continue deleting volumes until the whole hard disk displays as Unallocated.
Step 3. Depending on the operating system you are using, after the deletions, the dynamic disk will become basic disk automatically; or you still need to right-click the dynamic disk and then choose
If still facing the problem then go to method 2. Tutuapp 9apps Showbox