On 29 Jan 2025, at 17:17, Randy B. Singer via groups.io <randy@...> wrote:

On Jan 29, 2025, at 5:51 AM, ncoom gilbar via groups.io <ncoom@...> wrote:

Often when I come back to it, even after being away for hours, the lights are flashing like crazy and I hear what I assume are reads ?(and writes?) going on.

Why could this be? Shouldn’t everyone be asleep and home in their bed?

It could be a number of things.

The Mac OS does routine maintenance during down periods, including updating anti-virus definitions.

It could be that your Mac is exchanging data with iCloud, or executing a backup program.

Or software could be updating.

You can use the Console app to read your Mac’s log files to see what it has been doing:

https://www.howtogeek.com/356942/how-to-view-the-system-log-on-a-mac/

https://www.chriswrites.com/problem-with-your-mac-check-the-system-logs/


Also have a look at:

ProcessMonitor (free)
https://objective-see.org/products/utilities.html



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Randy B. Singer
Co-author of The Macintosh Bible (4th, 5th, and 6th editions)

Essential But Hard To Find Macintosh Software and Advice
http://www.macattorney.com/welcome.html
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