Solving Usb Flash Drive Problems; Usb Flash Drive Is Not Seen As A Drive Letter In Windows; Usb Flash Drive Not Found (Identified); System Will Not Boot From Usb Flash Drive - HP ProDesk 400 G7 SFF Maintenance And Service Manual

Solving USB flash drive problems

If you encounter USB flash drive problems, common causes and solutions are listed in these tables.

USB flash drive is not seen as a drive letter in Windows

Use this information to troubleshoot the computer.
Cause
The drive letter after the last physical drive is not available.

USB flash drive not found (identified)

Use this information to troubleshoot the computer.
Cause
The device is attached to a USB port that has been hidden in
Computer Setup.
The device was not properly seated before startup.

System will not boot from USB flash drive

Use this information to troubleshoot the computer.
Cause
Boot order is not correct.
Removable Media Boot is disabled in the Computer Setup utility.

The computer boots to DOS after making a bootable flash drive

Use this information to troubleshoot the computer.
Cause
Flash drive is bootable.
Flash drive is defective.
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Solution
Change the default drive letter for the flash drive in Windows.
Solution
Run the Computer Setup utility and enable USB ports in Advanced >
Port Options.
Be sure that the device is fully inserted into the USB port before
applying power to the system
Solution
Run the Computer Setup utility, and change boot sequence in
Advanced > Boot Options.
Run the Computer Setup utility, and enable booting to removable
media in Advanced > Boot Options. Be sure that USB is enabled in
Storage > Boot Order.
Solution
Install the flash drive only after the operating system boots.
Try a different flash drive.
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