Fix Guide: Tahoe "AccountSSD" Disk Space Bug

Symptom: You receive a "Disk Almost Full" warning, and system analysis shows "AccountSSD" or "Other Users" taking up 50GB+ of space on macOS Tahoe.

Why this happens

A bug in Tahoe's new account encryption layer causes the accountssd process to generate massive temporary log files in a hidden directory if FileVault is enabled but hasn't finished a full scrub.

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Fix 1: Purge the AccountSSD Logs

1. Open Terminal.
2. Run the following command (requires password):

sudo rm -rf /var/db/accountssd/*.log

1. Restart your Mac. You should see the space return immediately.

Fix 2: Force a FileVault Status Check

1. In Terminal, run:

fdesetup status

1. If it says "Encryption in progress," leave your Mac plugged into power overnight to finish, which will stop the log generation.

Recommended Tool: DaisyDisk

To find exactly where these "Hidden Space" bugs are hiding, DaisyDisk is the best tool for macOS. It allows you to scan as Administrator and see exactly what accountssd is doing.