• Avast For Mac 10.7.5

• Avast cleanup free download - Avast Free Mac Security, CleanUp, Avast Passwords, and many more programs. Avast cleanup free download - Avast Free Mac Security.
• Mac OSX is considered to be one of the most secure operating systems that exist. But the hackers of today are no longer chasing bugs on your computer, they prey on your identity and your money.
• Avast Cleanup Pro for Mac keeps your Mac clean and fresh. It’s a common misconception that Macs run perfectly from day one until the day you give it away. We wish that were true.

I know this might sound like a silly question, but I am particularly caution when trying new things on my PC. I am on a 20 day free trial with the Avast Internet Security service.
I have noticed a feature called: 'Cleanup Premium' under the 'Performance' tab.
The contents it recommends to remove to improve the performance of my PC are: Junk Files, Redundant Apps, Inefficient System Settings and Obsolete Registry Entries.
My question is more about the Redundant Apps, Inefficient System Settings and Obsolete Registry Entries. Would deleting all of these things not harm my PC in any way?
I have posted screenshots of the Redundant Apps, Inefficient System Settings and Obsolete Registry Entries that Avast claims I should delete. Please look at these screenshots and tell me if its safe to go ahead with this because truth be told, my PC is quite slow:
blob:http://imgur.com/10e8e589-0b20-451d-a2ac-a27c93aa3cdf
blob:http://imgur.com/00c229cf-8e22-41a8-82eb-dbe84509a79e
blob:http://imgur.com/77ed965b-9cab-489a-9236-029468746762
Help would be greatly apperciated guys, please let me know if its safe for me to go ahead with this. Thank you.

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Avast For Mac 10.7.5

Avast Cleanup pro seems to be the Mac model of the Cleanup premium app that is available for windows customers and is a part of this new supplying in particular developed for the growing market of Mac users that the business enterprise sees as an opportunity on which it may capitalize. The Avast Cleanup Premium is a system optimization software that scans your PC or Mac, resolves performance issues, boosts your PC speed, and concedes disk storage by deleting junk files, and bloatware. The software is paid and some users find the price of Avast Cleanup Premium on the higher side. To enhance security and optimize machine performance, Mac users may purchase 2018 Avast Security Pro and Cleanup Pro for Mac, available at $59.99 each. Reviewer’s licenses are available. System requirements: macOS 10.9 (Maverick) or later with at least 500 MB of disk space.