
Specific example: I tried to use a 256Gb SD card in a GoPro Connect2 camera, which only fully supports 64Gb cards. In this case the USB drive can be reformatted using a device that does fully support it, and then Rufus will work through that device.
You may not be aware of this without checking the device's specs.
Lastly, type “assign” to give this USB key a drive letter and “exit” to exit DiskPart.Īnother possibility is the device used to connect the USB drive to the PC doesn't fully support the drive - it can use it, but not format it properly. This should take a few minutes, and DiskPart will display a progress percentage. Format the key by inputting “format fs=fat32". Choose this partition with “select partition 1", and then mark it as active by typing “active”. Create a new partition by entering “create partition primary”.
Type “clean” for the utility to clean the disk, which DiskPart will confirm. Type “select disk n" (whatever is your USB disk number in place of "n"). Note the USB key’s disk number – you can pick it out by looking at the disk capacity. If your USB key is plugged into your PC, it should be listed here, along with other drives. Type in “list disk” to show a list of all disk drives. It will take a second until it loads and when ready it will read “DISKPART>”. At the prompt, enter “DISKPART” to launch Microsoft’s disk management utility. Go in Start > write “cmd” > right-click the Windows Command Prompt and choose to run it as an Administrator. I was able to fix the damaged USB by doing the following: