Program files your OS needs to function. Best not to tinker with these.

The part after the dot in a filename, like .jpg or .mp3, that tells you its format.

Files configured not to show up in regular file browsers. Usually system files.

Having two separate OSes installed, with the ability to choose between them at startup.

The process of setting up a new program or hardware device on your computer.

Removes a program and its associated files from your computer. Helps free up space.

Patches a program with fixes and improvements. It’s wise to stay updated.

Installing a newer version of a program or swapping in a better hardware component.

Shuts down and then immediately starts the computer back up. Helps resolve many issues.

Properly powers down the computer, saving data and closing programs first.