If you have ideas about a problem that could be causing your issue so you go through them one by one to see if you can eliminate any possible causes.

Common Solutions

1. If your computer does not start, begin by checking the power cord to confirm that it is plugged securely into the back of the computer case and the power outlet.
2. If it is plugged into an outlet, make sure it is a working outlet. To check your outlet, you can plug in another electrical device, such as a lamp.
3. If the computer is plugged in to a surge protector, make sure that its turned on. You might have to reset the surge protector by turning it off and then back on. You can also plug a lamp or other device into the surge protector to verify that it's working correctly.
4. If you are using a laptop, the battery may not be charged. Plug the AC adapter into the wall, then try to turn on the laptop. If it still doesn't start up, you may need to wait a few minutes and try again.

Tips for solving more difficult problems

1. If your applications freezes : Force quit the application. On a PC, you can press (and hold) Ctrl+Alt+Delete (the Control, Alt, and Delete keys) on your keyboard to open the Task Manager. On a Mac, press and hold Command+Option+Esc. You can then select the unresponsive application and click End task (or Force Quit on a Mac) to close it.
2. Restart the computer. If you are unable to force quit an application, restarting your computer will close all open apps
3. Run a virus scanner. You may have malware running in the background that is slowing things down.
4. Your computer may be running out of hard drive space. Try deleting any files or programs you don't need.
5. If the computer still won't shut down, you can unplug the power cable from the electrical outlet. If you're using a laptop, you may be able to remove the battery to force the computer to turn off. Note: This solution should be your last resort after trying the other suggestions above.