Objectives of this lesson• Be able to perform simple troubleshooting

of computer when the

– Computer does not turn on

– Monitor is not working

– Keyboard and mouse not responding

– Speaker not producing any sound

– Computer stop responding

– Computer is very slow

– Fail to install new hardware

Computer Troubleshooting ?

• Computer Troubleshooting means finding out computer problems and try solving it

Common Computer problems

• Computer does not turn on

• Monitor is not working

• Keyboard and mouse not responding

• Speaker not producing any sound

• Computer stop responding

• Computer is very slow

• Fail to install new hardware

Problem #1 Computer does not turn on

Possible solution• Check cable connection• Check power switch

–If the above doesn’t help»Do not try to open the casing of your

computer instead try consult your Computer technician .

Problem #2 Monitor is not working

Possible solution• Check Power cable connection• Check whether the monitor is turned on• Check link cable connection between

computer and monitor• Check the color or brightness level setting

–If the above doesn’t help»try consult your Computer technician .

Problem #3 Keyboard or Mouse not respondingPossible solution

• Check cable connection• Unplug and reconnect the device• Restart your computer

If the above doesn’t help»It could be defective or damage

please buy a one since it is easily replaceable .

Problem #4 Speaker or headset not

producing any soundPossible solution

• Check whether if speakers are turn on• Check if volume were turned up• Check if sound are muted by the computer• Check cable connection

If the above doesn’t help»It could be defective or damage

please buy a one since it is easily replaceable .

Problem #5 Computer Stop responding

due to non responding programPossible solution

• Press Control ALT + CTRL + DEL on your keyboard and end the task of the non responding program by using task manager

–If above doesn’t help»Press and hold the power button until

the computer force it self to shutdown

Problem #6 Computer is very slow

Possible solution• Close unneeded program• Delete unneeded files• Run Defrag on your hard disk• Run Scandisk on your hard disk• Reformat and reinstalling the OS

• If the above does not work• Please upgrade your Ram memory or

computer Processor

Problem #7 Failed to install new hardware

Possible solution• Install the correct hardware driver found in

the cd/dvd that are package with the hardware

• Download Device driver from the internet• Run windows update to search for device

driver

If the above does not work• Please contact your technician

Today Lesson Recap• Trouble Shooting means

Finding out the problems and try to solve it

• Common computer problems can be solve easily without visiting computer shop– Problem example

• Computer not turning on• Monitor not working• Mouse or keyboard not working• No sound produce by the computer• Computer freeze or stop responding• Computer experiencing lag• Having trouble installing new hardware