How To Fix Microsoft Edge High CPU Usage On Windows 11

What Happens When You Fix High CPU Usage?

When you lower your CPU usage, your fans will quiet down. Your mouse will move smoothly without stuttering, and websites will load faster. By managing your browser settings, you extend the life of your hardware and keep your computer cool and efficient.

Step 1Identify the Culprit with the Edge Browser 📊 Task Manager

Microsoft Edge’s built-in 📊 task manager helps you find exactly which tab or extension is using too much of your computer’s power, which is the first step to fixing high CPU usage.

1. Open Microsoft Edge.
2. Press Shift+Esc to open the Browser 📊 Task Manager.
3. Look at the CPU column to see which process is using the most power.
4. Select the offending item and click End process.

Why do this? This helps you find if a specific website is broken or if an extension is poorly written.

Step 2Use Advanced Diagnostic Tools

If Edge is still running slowly, advanced diagnostic tools like Process Explorer and Resource Monitor can give you a deeper look into what’s happening with your computer’s CPU usage.

Step 3Disable Unused Extensions

Extensions run in the background. If you have ten installed but only use two, the others are using up your CPU power.

1. Click the three-dot menu in the top-right corner.
2. Select Extensions and then Manage extensions.
3. Toggle off or remove any extensions you do not use daily.

Step 4Clear Browser Cache and Data

If cache files get corrupted, the browser spends extra effort trying to read them. This leads to high CPU usage.

1. Press Ctrl+Shift+Del in Edge.
2. Set the Time range to All time.
3. Check Cached images and files and Cookies.
4. Click Clear now.

Step 5Enable Efficiency Mode (Admin Privileges Required)

Note: You may need to be an Administrator to change system-wide power settings.

1. Open Windows Settings.
2. Go to System > Power & battery.
3. Ensure Efficiency mode is enabled for Microsoft Edge.

Step 6Manage ‘Zombie’ Processes

Sometimes Edge leaves ‘zombie’ processes running even after you close the window. To stop this, head to Settings > System and performance. Then, turn off ‘Startup boost’ and ‘Continue running background extensions and apps when Microsoft Edge is closed.’

Step 7Registry Tweaks for Advanced Power Management (Admin Privileges Required)

1. Press ⊞ Win+R, type regedit, and press Enter.
2. Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Edge.
3. If you see BackgroundModeEnabled, set it to 0.

Summary

High CPU usage in Edge is usually caused by too many extensions, old cache files, or background processes. By using the Browser 📊 Task Manager, clearing your cache, and disabling background features, you can reclaim your computer’s speed. Keep your Windows 11 system updated to avoid compatibility issues.