| Symptom |
Likely Cause |
Solution |
Prevention |
| Computer won’t turn on |
Power supply failure |
Check the power cord connection; try a different outlet; replace the power supply unit (PSU) if the problem persists. |
Regularly clean dust from vents and fans; use a surge protector. |
| Computer boots slowly |
Hard disk drive (HDD) failure |
Run a disk check; try booting in safe mode; replace the hard drive and reinstall the OS if needed. |
Regularly back up important data to an external drive or cloud storage. |
| Computer crashes frequently |
Overheating CPU |
Clean dust from vents and fans; check the CPU cooler; monitor system temperatures. |
Avoid extreme temperatures, humidity, or exposure to water. |
| No display output |
Graphics card failure |
Boot with the graphics card removed to isolate the issue; update graphics drivers; replace the card if needed. |
Upgrade hardware regularly to keep up with new technologies. |
| Keyboard and mouse not responding |
Motherboard failure |
Boot with minimum hardware configuration to isolate the problem; check for physical damage; replace the motherboard if needed. |
Keep the computer well-ventilated and avoid blocking the vents. |
| Computer won’t connect to Wi-Fi |
Wireless network adapter failure |
Restart the computer and router; update wireless network drivers; replace the adapter if needed. |
Handle hardware with care, avoiding physical damage and static electricity. |
| Computer beeping continuously |
RAM failure |
Run a memory test; try removing RAM modules one at a time; replace the faulty module. |
Use antivirus software and a firewall to protect against malware. |
| Computer shutting down randomly |
Overheating power supply |
Clean dust from power supply vents; check for an overloaded power supply; replace the PSU if needed. |
Avoid extreme temperatures, humidity, or exposure to water. |
