HP (Hewlett-Packard) SM774UP Personal Computer User Manual


 
CD-ROM, CD-RW, DVD-ROM, or DVD-R/RW drive cannot read a disc or takes too long to start.
Cause Solution
Media has been inserted upside down. Re-insert the media with the label facing up.
The DVD-ROM drive takes longer to start because it has to
determine the type of media played, such as audio or video.
Wait at least 30 seconds to let the DVD-ROM drive
determine the type of media being played. If the disc still
does not start, read the other solutions listed for this topic.
CD or DVD disc is dirty. Clean CD or DVD with a CD cleaning kit, available from most
computer stores.
Windows does not detect the CD-ROM or DVD-ROM drive. 1. Use Device Manager to remove or uninstall the device.
2. Restart the computer and let Windows detect the CD or
DVD driver.
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.
Table C-16 Solving USB Flash Drive Problems
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 ensure that “Device
available” is selected for “Front USB Ports” and “Rear USB
Ports” under Security > Device Security.
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
Solving USB Flash Drive Problems 125