How to Fix High RAM Usage in Windows 11 (Step-by-Step Guide)

If your Windows 11 computer feels slow, freezes randomly, or struggles with basic tasks, high RAM usage could be the cause.

You might notice:

  • System lag even with few apps open

  • Fans running loudly

  • Task Manager showing high memory usage

I've run into this myself—sometimes Windows uses way more memory than it should, even when you're not doing much.

Let's go through the most effective ways to fix it.

1. Check What's Using Your RAM

Before fixing anything, you need to see what’s consuming memory.

Steps

  1. Press Ctrl + Shift + Esc to open Task Manager

  2. Click the Processes tab

  3. Sort by Memory

  4. Identify apps using the most RAM

Windows 11 Task Manager showing high memory usage by processes

If a single app is using excessive memory, closing or restarting it might solve the issue immediately.

2. Disable Startup Apps

Too many startup apps can quietly consume RAM in the background.

Steps

  1. Open Task Manager

  2. Go to the Startup apps tab

  3. Right-click unnecessary apps

  4. Click Disable

Startup apps list in Windows 11 Task Manager

This reduces memory usage right after boot.

3. Close Background Apps

Many apps keep running even when you’re not using them.

Steps

  1. Open Settings

  2. Go to

Apps → Installed apps

  1. Select an app → click Advanced options

  2. Under Background app permissions, choose Never

Background app permissions settings in Windows 11

This can significantly reduce RAM usage over time.

4. Restart Windows Explorer

Sometimes memory leaks happen in system processes like Explorer.

Steps

  1. Open Task Manager

  2. Find

Windows Explorer

  1. Right-click → Restart

This refreshes part of the system and may free up memory.

5. Run Windows Memory Diagnostic

If RAM usage seems abnormal, it could be a system issue.

Steps

  1. Press Win + R

  2. Type:

mdsched.exe

  1. Press Enter

  2. Choose Restart now and check for problems

[Insert screenshot: Windows Memory Diagnostic tool]

Windows will scan your memory for errors.

6. Update Windows

Sometimes high RAM usage is caused by bugs.

Steps

  1. Open Settings

  2. Go to

Windows Update

  1. Click Check for updates

Install any pending updates.

Extra Tip: Uninstall Unnecessary Apps

Apps you rarely use can still consume memory in the background.

Go to:

Settings → Apps → Installed apps

Remove anything you don't need.

Conclusion

High RAM usage in Windows 11 is usually caused by:

  • too many startup apps

  • background processes

  • memory-heavy programs

  • system glitches

By following the steps above, you can reduce memory usage and make your system run much smoother.

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