You may follow all the rules for a virus/malware free computer but you may want a second opinion if you think you may have a virus / malware problem with your computer.
The following sites will allow you to do an online scan of your computer
My preferred one is the ESET Online scanner
Turn on the advanced settings on the ESET online scanner to remove unwanted programs
Thank you, Richard. This will help my Windows friends. I noticed that Quickscan gave an option for Apple Mac owners, but the others didn’t. I’m running MacKeeper currently to protect my iMac. Are there others you’d recommend for the Mac? Thank you again. Allen