Windows to go U disk no solution for the letter

First step. Open the cmd Command Prompt window (run as Administrator);

Step two. Execute DiskPart, and list disk, find the number of your USB drive (in this case, 1), and select the disk through select disk 1;

Step three. Perform the clean command to erase all data, formatting, and initialization information for the disk (this is the step to clear the Nodefaultdriveletter flag);

Fourth step. The next step is to create a disk partition for Windows to format. For u disk, we default generally on a partition, so execute create partition primary can.

Fifth step. To use a disk, you have to format it. However, with enough command line you can finally go directly to the Explorer to format the ~ if you still like the command line, then we can continue to execute the format Fs=fat32 quick.

Two more times to execute exit, exit the DiskPart tool and CMD. Now the U disk is back to normal, plug in the computer will be automatically assigned to the letter.