Every now and then your computer’s performance may be under par. You clean it up, as best as you can, run a virus scan, but the trouble persists.
You’re not quite sure what it is but your gut instinct tells you something is wrong, something is troubling you.
Try this. go to www.malwarebytes.org and for now, download their free anti-malware program Malwarebytes
Install and let it run a scan. You might be surprised at the malware it picks up.
This program has saved us many a time.