If none of your web browsers is working well enough to carry out these instructions, restart the computer in safe mode. Also, some websites carry intrusive popup ads that may be mistaken for adware. That's not malware and it may not show up. Some legitimate software is ad-supported and may display ads in its own windows or in a web browser while it's running. Deactivating it is a separate, and even easier, procedure that doesn't involve downloading anything. This easy procedure will detect any kind of adware that I know of. If those instructions don't work for you, or if you have trouble following them, see below.
Some of the most common types of adware can be removed by following Apple's instructions. There is never a need for it, and relying on it for protection makes you more vulnerable to attack, not less. You may have installed ad-injection malware ('adware').ĭon't use any kind of 'anti-virus' or 'anti-malware' product on a Mac.