HP EliteDesk 800 G4 Maintenance and Service Guide - Page 112

Solving USB flash drive problems

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Recording or copying CDs is difficult or impossible. Cause Wrong or poor quality media type. Solution 1. Try using a slower speed when recording. 2. Verify that you are using the correct media for the drive. 3. Try a different brand of media. Quality varies widely between manufacturers. 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 The drive letter after the last physical drive is not available. Solution Change the default drive letter for the flash drive in Windows. USB flash drive not found (identified). Cause The device is attached to a USB port that has been hidden in Computer Setup. The device was not properly seated before power-up. Solution Run the Computer Setup utility and enable USB ports in Advanced > Port Options. 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 Boot order is not correct. Removable Media Boot is disabled in the Computer Setup utility. 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. Ensure USB is enabled in Storage > Boot Order. 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. Flash drive is defective. Try a different flash drive. 104 Chapter 6 Troubleshooting without diagnostics

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Recording or copying CDs is
difficult
or impossible.
Cause
Solution
Wrong or poor quality media type.
1.
Try using a slower speed when recording.
2.
Verify that you are using the correct media for the drive.
3.
Try a
different
brand of media. Quality varies widely
between manufacturers.
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 hidden in
Computer Setup.
Run the Computer Setup utility and enable USB ports in
Advanced
>
Port Options
.
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 in
Advanced
>
Boot Options
.
Removable Media Boot is disabled in the Computer Setup utility.
Run the Computer Setup utility and enable booting to removable
media in
Advanced
>
Boot Options
. Ensure USB is enabled in
Storage
>
Boot Order
.
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.
Flash drive is defective.
Try a
different
flash
drive.
104
Chapter 6
Troubleshooting without diagnostics