MacBook Pro HD Cleaning

MacKeeper is practically malware. Uninstall it as per the developers instructions.

No. No Anti-Virus software or so-called “cleaning” apps are needed or recommended for Mac OS. They can conflict with Mac's own built-in security. At best they will slow your Mac by using unnecessary resources and at worst will bork your entire system.

How to free up storage space on your Mac - Apple Support

Please download and run EtreCheck, created by one of own colleagues here in ASC. It is a diagnostic tool that's very useful to us in finding problems. Also it will give us further specs on your Mac. After it runs post the log file here. It will contain no personal information.

MacKeeper has a horrible reputation. MacOS has all of the built-in routines that are needed and most "cleaning" apps do more harm than good.

If you are having a specific issue with your Mac, you may want to post a question about that rather than installing such apps.