:eyes:
you need a full hit then.
first run ccleaner. (both clean up and registry clean up)
https://www.piriform.com/ccleaner/download/standard
the run adwcleaner (your computer will reboot afterwards so don't do it in the middle of something)
AdwCleaner Download
then run malwarebytes
https://www.malwarebytes.com/
the run an reason core security
Reason Core Security Download
then run an antivirus.
run ccleaner again.
And personally I don't recommend keeping an antivirus on your computer. It will slow it down.
run it. uninstall it.
Go through the above motions once a month.