What to do if I can't find a U-disk letter

What to do if I can't find a U-disk Letter

u disk on other computers can be used normally, but in their own does not show the letter, how to solve this problem? You can try the following methods:

First, into the system of disk Management, to see if the U disk letter is deleted.

Right-click on "My Computer", select "Manage" and select "Disk Management" in the "Computer Management" window that pops up:

Here to see if there is a U disk (no words repeat the first and second steps), the U disk is assigned to the letter, if there is no letter, right click on it, select "Add drive name (letter)", OK.

Second, enter Safe mode, see whether normal.

Third, the host USB port power supply is insufficient, check whether the host USB port ash or oxidation, other USB devices on the host is normal. If it is a desktop, it is recommended to insert a U disk into the rear of the chassis USB port to try.