A lot of people would prefer if others could not access their computer. Some people do this by creating a windows password and while this usually covers most peoples security needs, some people have tricky kids or spouses who can find alternative ways to access your files. If this is the case in your scenario, you may want to setup a Power On Password for your computer.

To do this, we will need to change a few things in your system bios. To access your system BIOS, power on your computer and immediately push the button listed on the screen to access your BIOS. Typically the button is F2 or the DEL key; if neither of these buttons work, you should pay very close attention to the system screen when you turn the computer on.

Next, you will be taken to a screen with bunch of options; this is your BIO screen display. Use the arrow keys to navigate to the Security section. Once in the security section, you will either see an option that says 'Set System Password' or 'Set User Password'. Use the arrow keys to get to this option and press Enter.

At this point you will type in your new password. Be very careful it is something you can remember as you will need to change the battery on your motherboard in order to erase this setting. Depending on your bios, the system may ask you to retype your password.

Finally, press the F10 key to save the changes, and exit the bios. If you don't want to save the changes you just made press ESC.

NOTE: Before saving, make sure you are 100% you know what the password is you chose.

Your system will ask you to verify that you want to save changes, highlight yes and click enter. Your system will restart and prior to starting you will now require a password!