How do I fix troubleshooting on my computer?

computer troubleshooting and repair

Speeding up a slow computer

1. Run fewer programs at the same time. Don't have too many programs running at the same time. ...
2. Restart your computer. ...
3. Remove viruses and malware. ...
4. Free up hard disk space. ...
5. Verify windows system files. ...
6. Uninstall unnecessary programs. ...
7. Adjust windows visual effects. ...
8. Run a disk scan.

• Try restarting your computer. Many basic problems can be resolved easily and quickly this way.
• Press the Ctrl & Alt & Del keys on your keyboard together at the same time. This should bring up a menu that will allow you to run Task Manager. In Task Manager, switch to the Applications tab. Highlight any programs with the status 'Not Responding' and choose End Task. You may be asked to confirm if you want to end the unresponsive program, so choose Yes. Do this for all programs that are not responding.
• If all else fails and you cannot shutdown/restart your computer, then hold down the power button on the machine until it forcibly turns off. Wait a few seconds and then turn it back on again.
• Check that all the cables are securely plugged into the back of the machine and the monitor.
• Check that the power cables are plugged into a power socket and the socket has been turned on.
• Try using a different power socket or, if you are using a power extension strip, plug the power cable directly into a power socket in the wall.
• Replace the power cable with one that you know works.
• Check if there are any lights on at the front of the machine:
  • If there are lights on the machine but not the monitor, then it's probably a monitor issue.
  • If there are lights on the monitor but not the machine, then it's probably a machine issue.
  • If there are no lights on anything, then it may be possible there is a local power cut.
• With laptops, try removing the power cable and the battery. Hold down the power button for about ten seconds, and then plug the battery and power cable in again. Press the power button to see if it switches on.