Hi!
I'm trying to create an image of microSD, but i get this error´s message:

6/4/2020 13:14:57
6/4/2020 13:14:57 HDD Raw Copy Tool 1.10; http://hddguru.com
6/4/2020 13:14:57
6/4/2020 13:14:57 Source: [2] Realtek PCIE Card Reader 1.00 [63,86 GB]
6/4/2020 13:14:57 Target: [FILE] C:\BK.imgc
6/4/2020 13:14:59 Locking device...
6/4/2020 13:14:59 Unable to lock source device. Make sure you do not have open files on this device and try again.
6/4/2020 13:14:59 NOTE: This tool will NOT copy your boot (OS system) hard drive. The tool requires absolutely exclusive access to the source media.
6/4/2020 13:14:59 If you want to copy/image your boot hard drive, then you would need to attach it temporarily to another PC and perform the task on that PC.

Can you help me?
Regards!!