It is a scam, pestering you wuth junk stating that their pro version has all the functionality, but needs credid card authorisation (that they say that they will not charge you - LIE)
Removing the software isa not possible due to the way it embeddes itself in system files. As a result, the only way to remove it is to reinstall the operating system.

It is SCAM, JUNK, and stay as far away from it as possible

They use predatory practices and they force you to auto-renew I tried to cancel my subscription on my computer by opening driverbooster and I also declined auto-renewal on their website and I'm being charged again and they refuse to give my money back after they refuse to let me cancel the auto-renewal this company will steal your money and the programs are malicious be very careful using anything from iobit their company is a bunch of thieves

Preditory is a perfect description... and they are very good at it!

Dear Customer,

This is IObit Support Team.

IObit is a legal company. If you have any question, please feel free to contact us via support@iobit.com.

Thank you.