How to Fix High RAM Usage and Memory Leaks on Windows 11

July 06, 2026    software-fixes   

Windows 11 is designed to manage system memory efficiently, but many users frequently notice their PCs slowing down due to high RAM usage. When your Random Access Memory is constantly hogged—even when no heavy programs are open—it is usually a sign of aggressive background processes or a memory leak.

A memory leak happens when a software or background service allocates RAM but fails to release it back to the operating system after finishing its task. In this guide, we will walk you through the best software fixes to reclaim your RAM and restore Windows 11 back to peak responsiveness.

1. Clear Corrupted Memory via Registry (NDU Fix)

The Network Data Usage (NDU) driver is a notorious culprit behind massive memory leaks in Windows 11. It tracks network traffic in the background, but bugs within the driver frequently cause it to continuously stack up cached data inside your RAM without ever clearing it.

Press Windows Key + R, type regedit, and press Enter.
Navigate to the following path: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Ndu
In the right pane, right-click on the Start value and select Modify.
Change the Value data from its default to 4 (this completely disables the NDU monitoring routine).
Click OK and restart your PC to stop the hidden network memory leak.

2. Adjust Virtual Memory Allocation Manually

When your physical RAM capacity is heavily restricted by active services, Windows balances the payload using your storage drive as a pagefile. If this allocation isn't configured properly, it creates heavy bottleneck spikes across your system hardware.

If your computer is locking up completely during high memory workflows, it can cause severe storage failures. Make sure to implement the proper configurations detailed in our step-by-step tutorial on how to fix 100% Disk Usage on Windows 11 to keep your storage caching pipeline optimized.

3. Restart Windows Explorer Process

The default File Explorer interface in Windows 11 has a well-documented bug where opening and closing multiple folders continuously hoards RAM resources without properly releasing them, resulting in an artifical performance choke.

1. Press Ctrl + Shift + Esc to launch the Task Manager.
2. Under the Processes tab, look for Windows Explorer.
3. Right-click on it and select Restart. Your desktop taskbar will momentarily vanish and reappear, immediately flushing out cached interface memory.

This quick refresh helps lower immediate resource overhead. However, if your system memory strains are causing widespread freezing or system crashes, you should immediately cross-reference our diagnostic guide on resolving DPC Watchdog Violation BSOD in Windows 11.

4. Disable Aggressive Startup Applications

Many third-party apps configure themselves to boot up silently in the background from the moment you turn on your PC. These hidden background services consume massive chunks of RAM right from the starting line, heavily delaying your boot times.

To clear out these high-impact startup apps and significantly optimize your PC's initial boot speeds, follow our comprehensive checklist on How to Fix Windows 11 Slow Boot Time.

5. Inspect and Update System Hardware Drivers

Outdated hardware drivers (especially audio, chipset, and graphics drivers) are highly prone to triggering internal memory leaks within core system pools like Non-Paged Pools.

For verifying driver performance and installing secure official components safely, you can refer to the Microsoft Support Guide on Updating Drivers Manually. Keeping core hardware modules updated ensures smooth background asset management.

Conclusion

Troubleshooting high RAM usage on Windows 11 involves eliminating memory leaks caused by background system components like NDU and refreshing active interface environments. Keeping your background overhead clean ensures a lag-free desktop experience.

Are your system background services running smoothly, but your dedicated GPU pipeline is still crashing or black-screening during gaming sessions? Check out our verified fix for the Amdkmdap Stopped Responding Driver Error to keep your graphics card stable.