Sometimes, when you try to copy to files to another hard drive, you may receive an error message Cannot read from the source file or disk like the following pictures:

 
Then do you know how to solve this problem?
 

How to Test Hard drive?

 
In fact, this error may be caused by bad sector on your hard drive. Then we can test it by using MiniTool Partition Wizard, which is a professional partition magic specializing in dealing with all kinds of partition and disk matters. For example, it can convert MBR to GPT without data loss, migrate OS to SSD and so on.
 
Therefore, you can download the MiniTool Partition Wizard Free to test your hard drive and to solve the error cannot read the hard drive.
 
For testing hard drive, we will talk the detailed operations in the following step by step.
 
Step 1: Install this free software and launch it to enter its main interface.
 
Step 2: Select the partition that contains the files to be copied and choose Surface Test from left pane or context menu.

 
Step 3: Then in the popup window, you can click Start Now to begin surface test. Note that the disk block without read error is marked green and the disk block with read error is marked red.

 

How to Fix Cannot Read from the Source File or Disk?

 
If there are some bad sectors on your hard drive, you can try to use the following method to fix the issue. You can try to use this free software to copy the source partition to the target partition.
 
Then we will introduce how to copy partition step by step.
 
Step 1: Select the partition and choose Copy Partition from the left pane or choose Copy from the context menu.

 
Step 3: Then on the next page, you need to choose a target disk. Please note that the target disk should be an unallocated space and the target disk should be large enough to store all files of the source disk.

 
Step 4: In the popup window, you can change the size and the location of the partition and click Finish to continue.

 
Step 5: Returning the main interface, you can preview the change and click Apply to confirm this change.

Conclusion

 
From above information, we have introduced how to check whether the disk has bad sector with MiniTool Partition Wizard when you have received an error Cannot read from the source file or disk. At the same time, you also can use MiniTool Partition Wizard to copy partition when you can’t read the hard drive. Just download it and have a try.