Share Sharing service is unavailable in System Settings

Japan-Wac

If System Settings >> General >> Sharing shows "Sharing service is unavailable" on your M1 iMac running macOS Sonoma, the issue is usually caused by a system service that did not start correctly, a corrupted preferences file, or, less commonly, a damaged macOS installation.

Start by restarting your Mac using Apple menu >> Restart, then check whether System Settings >> General >> Sharing is working again.

If the problem persists, try starting your Mac in Safe Mode.  Once you have logged in, open System Settings >> General >> Sharing to see if it works, then restart normally.

Next, check for any available macOS updates by going to System Settings >> General >> Software Update. Installing the latest Sonoma updates may resolve the issue, as Apple has addressed Sharing-related bugs in several releases.

If the issue continues, create a temporary administrator account  Sign in to that account, and open General >> Sharing. If Sharing works in the new account, the problem is likely limited to your original user profile.

You can also try restarting the Sharing service manually.

Open Terminal and run: sudo launchctl kickstart -k system/com.apple.sharingd

After the command completes, reopen System Settings and check the Sharing pane. If Terminal reports an error, note the exact message.

If that doesn't help, restart into macOS Recovery   Selecting Options, and opening Disk Utility. Run First Aid on your Macintosh HD, then restart and check the Sharing pane again.

If the Sharing pane still reports "Sharing service is unavailable," reinstalling macOS over your existing installation is often the most effective solution. Boot into macOS Recovery, choose Reinstall macOS, and install it over your current system. This process typically replaces damaged system files without deleting your personal data.