Fix Adobe Error 16: License Expired Loop on macOS

Quick answer: clear the Adobe activation cache

Delete these two folders, restart the Adobe app, and sign in again:

sudo rm -rf /Library/Application Support/Adobe/SLStore
sudo rm -rf /Library/Application Support/Adobe/OOBE

That's it for the fast fix. If you're still stuck, read on for the full breakdown.

Why Error 16 happens

I've seen Error 16 hit users on macOS Ventura and Sonoma most often, usually after a macOS update or a Creative Cloud desktop app patch. The error message says something like “Your license has expired” or “Your subscription is no longer valid.” But your Adobe account shows an active plan. The real problem isn't your subscription—it's the local activation cache that got corrupted or out of sync.

Adobe stores license validation data in two system-level folders: SLStore and OOBE. When a macOS update changes security permissions or when Creative Cloud updates leave stale files behind, Adobe's license checker can't read the cache properly. So it defaults to “expired.” Frustrating, I know. But the fix is straightforward once you know where to aim.

Step-by-step fix

Quit all Adobe apps — Photoshop, InDesign, Illustrator, even the Creative Cloud desktop app. Use Activity Monitor to check for background processes like AdobeIPCBroker or Adobe Desktop Service. Kill them if needed.
Open Terminal — found in /Applications/Utilities/. You'll need admin access, so the commands use sudo.
Delete the SLStore folder — run:
```
sudo rm -rf /Library/Application\ Support/Adobe/SLStore
```
This folder holds the license entitlement cache. Removing it forces Adobe to re-download the valid license from their servers on next launch.
Delete the OOBE folder — run:
```
sudo rm -rf /Library/Application\ Support/Adobe/OOBE
```
OOBE contains user-specific activation data and workflow state. Blowing it away clears up any corruption there.
Reboot your Mac — don't skip this. A fresh start ensures all cached permissions are reset.
Open any Adobe app — Photoshop, for example. It'll prompt you to sign in. Enter your Adobe ID credentials. Within 10 seconds, the app should activate and run normally. If you see Error 16 again, move to the alternative fixes.

Alternative fixes if the main one fails

Option 1: Use the Creative Cloud Cleaner Tool

Adobe provides a utility for deeper cache scrubbing. Download it from the official Adobe support site, run the tool, and select “Adobe Creative Cloud” as the product. It wipes out leftover cache from multiple versions—useful if you've upgraded from CS6 or CC 2018. Warning: it also logs you out of all Adobe apps, so have your password ready.

Option 2: Repair disk permissions (macOS only)

On older macOS versions (Catalina and earlier), permission corruption can trigger Error 16. Run in Terminal:

diskutil resetUserPermissions / 'id -u'

On macOS Big Sur and later, permission repair is automated, but you can still run First Aid in Disk Utility to check the system volume integrity.

Option 3: Reinstall Creative Cloud desktop app

If the cache clean didn't work, the Creative Cloud app itself might have a corrupted database. Uninstall it using the official uninstaller (not dragging to Trash). Reboot, then download the latest version from Adobe's site. Install fresh. This fix takes longer but resolves edge cases where the subscription check endpoint is stored incorrectly.

Prevention tip

Error 16 comes back if you let macOS updates or Adobe updates overlap without a restart. Here's what I do: always reboot after a macOS update before launching any Adobe app. Also, set Creative Cloud to not auto-update during system updates—delay Adobe updates by a week. That gives Adobe time to patch any compatibility bugs. And once a quarter, manually clear the SLStore and OOBE folders before they get bloated. Takes 30 seconds and saves you a headache.

A final thought: Error 16 is Adobe's way of saying “I can't read my own notes.” The cache is fragile. Treat it like a stack of sticky notes—sometimes you just have to throw them away and start fresh.