You may find the drive appears as “invalid dynamic disk” when exploring Windows built-in disk manager in Windows 7. Invalid dynamic disk can be caused by many reasons, such as, Operation System upgrade, virus attack, accidental power off, hardware environment change and usage of second-hand hard disk, etc. If you are Windows 7 Home Basic Edition and Home Premium Edition users, the dynamic disk will become invalid Status. Dynamic disks only can be supported by business OS like Windows 7 professional Edition and Ultimate Edition.

Some people may have encountered such problem: I decided to start backing up my data. I have three drive in my system, one of which I wanted to remove and use as an external backup. They were all set up as dynamic disks. In the process I moved all of my personal files temporarily from the documents volume to the striped volume, and I used the extra space to move files around. I went to shrink the spanned “files” volume. It looked like it was taking a while, so I left computer running overnight. In the morning, however, I turned on the monitor to find that the computer had reset, that windows would crash while booting, and that Startup Repair did not detect any of the volumes except “Programs”. I discovered that disk 1 was listed as invalid, and all the volumes except “programs” were listed as failed.

Some people may want to know how to deal with invalid dynamic disk: We can use dynamic disk manager to convert dynamic disk to basic, one method to convert an empty disk to basic is by Windows built-in disk management utility. But all volume should be deleted to let disk empty. It’s still not convenient for users. There is another easy way for us to convert to basic – third party tool. AOMEI Dynamic Disk Manager, one professional disk conversion software, which supports for Vista, Windows 7, 2000, XP and Server OS. It makes dynamic disk convert an easy work and provides you a great help in repairing invalid dynamic to basic disk and secure data safety.