Maybe its worth to try
https://www.spyshelter.com/ and reboot the system. If there is a keylogger or some other kind of evil software Spyshelter will find it.
Looks like this is Windows only? How good is this? By the looks of it, seems like this is made for Windows XP?
Looks very old too (got an award in 2013).
Is there an alternative software for other OS?
Not that I'm gonna need it but maybe some users find it useful.