Simple-WSJT-batch-file.bat and other batch file information Remark lines are preceeding with :: and ignored in the batch. ex: :: Replace Owner with your PC name if needed {pause} is a command that will pause the batch script. If you want the backup USB device to have a persistant drive letter: 1. Use the Windows key + X keyboard shortcut to open the Power User menu. 2. Select Disk Management. 3. Right-click the USB drive on the list and select Change Drive Letter and Paths. 4. Click the Change button. 5. Use the drop-down menu and select the drive letter you want to use. Choosing a letter from M to Z will insure it will not conflict with other devices.