T3: Drive Detected But Not Accessible On Windows

If a drive is detected but not showing up on Desktop nor in My Computer, Please follow below solutions:

Method 1. Reassign a new drive letter to the USB

  1. Press “Windows + R” simultaneously, input “diskmgmt.msc” and hit “Enter” to open Disk Management.


  1. Locate the USB disk partition, right click it and choose “Change Drive Letter and Path…”.

change drive letter

  1. In the pop-up window, click “Change” and assign a new drive letter to the partition.

Always remember that you must assign the name which is not being used by any other drive.

change drive letter 2

Once drive letter name changed, your USB drive will show up in My Computer and you will able to access data from it. If not then reboot your system and then check.

Method 2. Run CHKDSK to ensure there is no bad sectors on the USB

If the USB flash drive is corrupted or there are some bad sectors on it, then you could not access it, either. However, you can try to run CHKDSK to fix it.

  1. Click the Search box, type “cmd”, right click Command Prompt icon and select “Run as administrator”.
  2. In the Command Prompt window, type “chkdsk g: /f /r /x” and press “Enter” (where the “g” stands for the drive letter of your USB flash drive.)

chkdsk command

Method 3. Reformat the USB to a compatible file system

If your USB is formatted to be Ext2/3/4 file system, then you be unable to open it in “My Computer”. That’s because the Ext file system is not compatible with Windows operating systems. So you need to reformat it to other compatible file systems, like FAT32, NTFS, exFAT. You can format it in Disk Management.

Warning: since formatting will erase all data stored in the USB drive, please back up your data before formatting.