Computer date and time display is incorrect.
Cause
Solution
To access Control Panel in Windows 10, type
control panel
in
the taskbar search box, and then select Control Panel.
There is no sound or sound volume is too low.
Cause
Solution
System volume may be set low or muted.
1.
Check the Computer Setup settings to make sure the
internal system speaker is not muted (this setting does not
affect the external speakers).
2.
Make sure the external speakers are properly connected and
powered on and that the speakers' volume control is set
correctly.
3.
Use the system volume control available in the operating
system to make sure the speakers are not muted or to
increase the volume.
Cannot remove computer cover or access panel.
Cause
Solution
Smart Cover Lock, featured on some computers, is locked.
Unlock the Smart Cover Lock using Computer Setup.
In case of forgotten password, power loss, or computer
malfunction, you must manually disable the Smart Cover lock . A
key to unlock the Smart Cover Lock is not available from HP. Keys
are typically available from a hardware store.
Poor performance.
Cause
Solution
Processor is too hot.
1.
Make sure airflow to the computer is not blocked. Leave a
10.2-cm (4-inch) clearance on all vented sides of the
computer to permit the required airflow.
2.
Make sure fans are connected and working properly (some
fans only operate when needed).
3.
Make sure the processor heat sink is installed properly.
Hard drive is full.
Transfer data from the hard drive to create more space on the
hard drive.
Low on memory.
Add more memory.
Hard drive fragmented.
Defragment hard drive.
Program previously accessed did not release reserved memory
back to the system.
Restart the computer.
Virus resident on the hard drive.
Run virus protection program.
Too many applications running.
1.
Close unnecessary applications to free up memory.
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Chapter 7 Troubleshooting without diagnostics