How do I get support for my iMac? Go to > About This Mac and click the buttons at the top.
Ask Siri. Ask Siri for information about your Mac. Say something like:
“How fast is my Mac?”
“How much memory does my Mac have?”
“How much free space do I have on my Mac?”
“How much iCloud storage do I have left?”
How do I check my disk for problems? Use Disk Utility. See Repair a disk using Disk Utility on Mac in the Disk Utility User Guide.