Defrag hard drives in Partition Expert is an effective way to speed up your computer especially when there’re slow responses to any of your operation.
Defrag hard drive steps:
Then you'll see the message goes
The operation completed successfully.
The Check Volume function can be used to check logical bad sectors and fix errors on the hard drive, if you're looking for a tool to scan to the physical bad sector, please try Disk Scanner instead or use the Surface Test function in Partition Expert.
Steps to check volume in Partition Expert:
Then Click OK to start checking.