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Reply To: [Solved] WindowServer High Memory Leak on macOS Sequoia 15.1: Diagnostic steps and permanent fix

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Home › Forums › MacBook, iMac & macOS Lab › [Solved] WindowServer High Memory Leak on macOS Sequoia 15.1: Diagnostic steps and permanent fix › Reply To: [Solved] WindowServer High Memory Leak on macOS Sequoia 15.1: Diagnostic steps and permanent fix

November 14, 2026 at 6:11 pm #9749
Ethan Carter
Apple Master (Lvl 10)
Apple Recommended / Verified Community Solution
This canonical solution was verified and marked as solved in the Apple Support Community archive.

Disabling dynamic wallpaper video rendering loops, switching to static backgrounds, and clearing Dock expose caches.

Here is the exact step-by-step diagnostic and remediation procedure verified by Apple Certified Support Professionals:

  1. Switch all desktop spaces to static wallpapers in System Settings > Wallpaper.
  2. Flush compositor memory: sudo purge && killall Dock.
  3. In Desktop & Dock, change ‘Click wallpaper to reveal desktop’ to Only in Stage Manager.

Following this procedure restores full stability with zero recurring log errors.

Apple Certified Support Professional (ACSP)
Cupertino, CA | "Precision Apple Diagnostics"