You can move the recovered data back to the USB drive. Select the file system, set the allocation unit size, choose a volume label, and check Quick Format.Īfter the formatting process is done, the USB drive is accessible again.
Right-click the USB flash drive and select Format.However, formatting a drive will erase all data on it, you should recover data from the inaccessible USB with data recovery software like iBoysoft Data Recovery. In this situation, you have to reformat the USB drive. If you ensure that the USB drive is compatible with Windows, the drive is probably corrupted. If your drive is APFS or HFS+ formatted, Windows won’t allow you to access it. By default, Windows only supports NTFS, exFAT, FAT32, FAT16 file systems. You can connect the USB drive to a Mac device to check if it can be recognized and mounted in read-write mode. The USB drive is not compatible with Windows.If unfortunately, the solutions mentioned above fail to enable the USB drive accessible again, there are two scenarios:
Check the Full control option and click Apply > OK. Click Add and add a new user named Authenticated User. Select the Security tab and click Edit to open the Permissions for New Volume box. Now, you can try to access the USB drive to check if it is still inaccessible.Īs the USB drive is access denied, you can try to add an authenticated user to get permission to access it. Choose the Security Tab and click Advanced. Right-click the USB drive and select Properties. You can try to adjust the ownership of the inaccessible USB drive. Sometimes, the owner’s status in Windows is the troublemaker of the USB drive not accessible error. Then, check if you can access the USB drive. Remember to set a different letter from other partitions to the USB drive partition. Click Change in the pop-up window and assign a new drive letter to the partition. Select the USB drive partition and choose Change Drive Letter and Path…. If there is no issue with the USB drive letter, try the next solution. If that is the case, you can reassign a drive letter to the USB and then, the issue will be fixed. You can go to Disk Management to have a check.