Even the most experienced computer programmers and those who fix computers can have issues with keylogger detection and removal.
Keyloggers are a type of program that will save every single thing you do to a separate database and analyze the information later for passwords and other sensitive information.
Keylogger detection and removal can be a long process and it is one that is not often undertaken by those who don't know exactly what they are doing.
Should you feel that you are competent enough to clear your own computer of such things, all you have to do is locate the keylogger and then use a program to eliminate it.
There are countless programs scattered across the internet that are made specifically for such things.
They are very effective at finding and eliminating keyloggers without ruining anything else that might be on your hard drive.
The safest way to remove a keylogger is do so with complete certainty.
Confusing? Very much so.
Keyloggers embed themselves in a computer's hard drive also known as the C drive.
Meaning, they live among programs that are vital to your computer's safety and speed, among other, even more vital, things.
That means that, before you get rid of anything that you think might be a keylogger, you have to make sure that it is not some vital program that windows or Linux is running discreetly in the background.
There are tons of websites on the internet that show all of the different programs that the systems run either directly or indirectly.
If what you are looking at is not one of the mentioned programs, it might be a keylogger or something very similar.
When in doubt, take the computer to a professional for keylogger detection and removal.
It's the safest thing to do.