It repeatedly occurring on my computer and changing it from chrome search engine to Yahoo. I want to ignore it.
Advanced Mac Cleaner is crap software frequently found installed alongside adware (aka, ad-injection malware). It should be removed. Unfortunately, it worms its way deeply into the system, so removal isn't trivial.
To remove it, make sure to quit the Advanced Mac Cleaner app, then drag it from the Applications folder into the trash.
Next, you'll need to remove all of the following files:
/Library/Application Support/amc/ ~/Library/Advanced Mac Cleaner/ ~/Library/hlpramc/ ~/Library/Application Support/Advanced Mac Cleaner/ ~/Library/LaunchAgents/com.pcv.hlpramc.plist ~/Library/Logs/helperamc.log ~/Library/Preferences/com.PCvark.Advanced-Mac-Cleaner.plist
If you're not sure how to find these files, see: http://www.thesafemac.com/locating-files-from-paths/
Hope this helps!
If you accidentally got Advanced Mac Cleaner installed on your Mac, you can follow this troubleshooting guide to remove the app from your computer.
Advanced Mac Cleaner is but a wrapping that covers the same malicious code; well, the code does update, but rather to fix vulnerabilities; the greatest chages apply to such simple but distinctive traits as the display name and GUI, recent clone is Mac Auto Fixer