140 votes76 comments · Illustrator (Desktop) Feature Requests » User Interface · Flag idea as inappropriate… · Admin →
This has been completed, and has available since June 2020 release (version 24.2)
Please go to Illustrator preferences > General > and select “Show/Hide Rulers” (refer attached screenshot). After checking this, if you hit ‘Show Rulers (Ctrl/Cmd + R)’, then the rulers will appear in every document (new and old), even after relaunching Illustrator.
Please update to the latest release using Creative Cloud desktop App: https://helpx.adobe.com/in/creative-cloud/help/creative-cloud-updates.html
Thank you for all the feedback.
An error occurred while saving the commentBrian commented
How is there not a way to store this preference? Insanely stupid. I am so sick of having to recreate my preferred layout every time I open illustrator, or even for each file!