Solving USB Flash Drive Problems
If you encounter USB flash drive problems, common causes and solutions are listed in the following
table.
USB flash drive is not seen as a drive letter in Windows.
Cause Solution
The drive letter after the last physical drive is not available. Change the default drive letter for the flash drive in Windows.
USB flash drive not found (identified).
Cause Solution
The device is attached to a USB port that has been disabled in
Computer Setup.
Run the Computer Setup utility and ensure that the USB ports
are enabled.
The device was not properly seated before power-up. Ensure the device is fully inserted into the USB port before
applying power to the system
System will not boot from USB flash drive.
Cause Solution
Boot order is not correct. Run the Computer Setup utility and change boot sequence.
The image on the device is not bootable. Insert a bootable device.
The computer boots to DOS after making a bootable flash drive.
Cause Solution
Flash drive is bootable. Install the flash drive only after the operating system boots.
174 Chapter 9 Troubleshooting Without Diagnostics
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