|This does not mean your computer is infected, but to be sure we can run some checks...|
I would like you to install UnHackMe. This will find any rootkits on your system which may be hiding from the malware scanners.
Reboot, then install and run Malwarebytes.
Finally, run an online virus scan with ESET.
Hope this helps.
Andrew at rising-uk.com
Rising UK Pc Security @ Rising-UK.com