How to fix error error-ring2-stack-in-use in Windows 11

Solution Steps

1. 1 Press Windows key + X and select 'Device Manager'. Look for devices with a yellow exclamation mark. Right-click any problematic device and select 'Uninstall device'. Check 'Delete the driver software for this device' if available, then restart. This removes potentially faulty drivers that might be using the ring 2 stack incorrectly.
2. 2 After restart, Windows will reinstall the driver automatically. If not, go to the manufacturer's website and download the latest driver for your hardware. Install it and restart again.
3. 3 Run System File Checker: Press Windows key + R, type 'cmd', then press Ctrl + Shift + Enter to open Command Prompt as administrator. Type 'sfc /scannow' and press Enter. This repairs corrupted system files that might be causing the error.
4. 4 If the error persists, run DISM: In the same Command Prompt, type 'DISM /Online /Cleanup-Image /RestoreHealth' and press Enter. This fixes the Windows system image.
5. 5 Check for Windows updates: Press Windows key + I to open Settings, go to Windows Update, and click 'Check for updates'. Install any pending updates, as they often include driver fixes.
6. 6 If the error still occurs, perform a clean boot: Press Windows key + R, type 'msconfig' and press Enter. Go to the Services tab, check 'Hide all Microsoft services', then click 'Disable all'. Go to the Startup tab and click 'Open Task Manager'. Disable all startup items. Restart. This helps identify if a third-party service is causing the issue.