To those who downloaded any Keylogger by mistake, here’s how to permanently remove it.
Open “run” from start,
Write down “Regedit” on it then click on Ok.
After doing so, Another tab will be opened,
Click on the “+” sign which is beside the word “HKEY_LOCAL_MACHINE” then open directly the following folders “Software” > “Microsoft” > “windows” > “Current version” > “run”
When clicking on “run”, the tab you’ve already opened should change the content inside it.
On the right side, Check all the names & data. If you found a name with no data or a small arrow in the data field, then this is a Keylogger program.
If you found any, right click and then delete.
This info was from a book written in 2011. I hope it helps.