EyeFoto wrote:
Thank you for all your advice. I reinstall the app and select the (2nd) option to install in a different folder. The installation completed successfully. The previous copy of the app may occupy a space larger than the installer (62 MB). .
Where was the old app installed and where is the new app installed? Sounds like you should just be able to delete the folder of the old app. A better option may have been to first uninstall the old app by following the developer's instructions. Doing so now that you have the new app installed probably is not a good idea as it may corrupt the configuration for the new installation.
When I run out of disk space, I will need to get something like Clean my Mac to recover
Never allow your Mac to have less than 20GB of Free storage space at any time (the Etrecheck report is showing about 22GB at the moment, which is the absolute minimum needed). macOS requires at least 20GB+ of Free storage space at all times. For certain more intensive workloads, you may need to have up 100GB or more of Free storage space (video editing would be one example). Ignore the "Available" storage designation because it is unfortunately very misleading since not all "Available" storage may be immediate accessible to the user. The only place macOS actually lists the actual Free space is in Disk Utility when you click on the "Data" volume on the left pane of Disk Utility....the Free space value will be shown on the right pane just beneath the storage graph bar.
You can calculate the Free space from the Available space listed most everywhere else in macOS by using this formula:
Free space = Available - Purgeable
Purgeable is usually listed in parenthesis just after the Available value. Purgeable is storage that will be able to be used at some unknown point in the future.
I completely agree with the other contributors' recommendation to avoid CleanMyMac at all costs since these forums are full of posts where CMM has been confirmed to be the source of thousands of users' problems from system instability, Kernel Panics, and severe performance issues.
In fact, it is best to avoid all anti-virus apps, cleaning/optimizer apps, and third party security apps for the same reasons. None of these types of apps are needed on a Mac. You may want to review this excellent article written by a respected forum contributor about keeping your devices running smoothly and keeping you & your devices safe:
https://discussions.apple.com/docs/DOC-8841
