Jasper1368 wrote:
I have more than 90GB of System space taken on my iMAC with only 11.75GB of Applications and all documents on iCloud / Google Drive. Can someone please help me to understand how I go about reducing this? I love my MAC but am so frustrated about how to go about reducing. I am still use Mohave because there isn't enough space to upgrade to latest OS. Can someone please help ??
Thanks In Advance
Empty your Trash — Delete files and folders on Mac - Apple Support
https://support.apple.com/guide/mac-help/delete-files-and-folders-on-mac-mchlp1093/mac
How to free up storage space on your Mac - Apple Support
https://support.apple.com/en-us/HT206996
See used and available storage space on your Mac
https://support.apple.com/guide/system-information/see-available-storage-space-syspf9b375b9/10.14/mac/10.15
User tip: "Other and What Can I Do About It ?"
https://discussions.apple.com/docs/DOC-5142
Try something like OmniDiskSweeper for a GUI to get a good look at itemized file size and location:
OmniDiskSweeper http://www.omnigroup.com/more