No. TuneMeUp is happy to work alongside whatever antivirus you already use, including Avast, Norton, McAfee and Windows Defender, which comes built into Windows.
There is nothing to turn off
You do not need to switch off your antivirus, and you do not need to uninstall it. Keep your protection on and let TuneMeUp get on with the tune-up.
They do different jobs
Your antivirus watches for viruses and other harmful software. TuneMeUp clears out the clutter, the slow start-ups and the everyday glitches that build up on a computer over the years. Neither one gets in the way of the other.
If a virus has already taken hold and your antivirus cannot shift it, that is what FixMeStick is for — a USB stick that cleans the computer from the outside.
If your antivirus asks about TuneMeUp
Some antivirus programs ask you to confirm the first time they see a new program. If yours asks whether to allow TuneMeUp, it is safe to say yes.
If your antivirus blocks TuneMeUp
Once in a while a security program is more cautious than it needs to be and gets in TuneMeUp’s way. If TuneMeUp works out that a security program on your computer is blocking it, it tells you, and it shows you step by step how to add TuneMeUp to that program’s safe list — the list of programs it has been told to trust.
You do not have to know your way around your antivirus. Follow the steps TuneMeUp gives you for the program you have, and your protection stays on the whole time.