How to Fix a Memory Leak on Windows

What Causes This?

A memory leak happens when a program keeps using RAM but does not release it properly after it is done. This is usually caused by buggy apps, browser tabs or extensions, outdated drivers, or background software that keeps allocating memory over time. In some cases, Windows can also feel like it has a memory leak when too many startup apps, services, or temporary processes are competing for limited RAM.

Common Symptoms

• Your PC gets slower the longer it stays on
• RAM usage stays unusually high even when few apps are open
• Programs freeze, crash, or stop responding
• You hear constant disk activity as Windows starts using virtual memory
• Restarting temporarily fixes the problem, but it comes back

How to Fix It Manually

1. Find the app using too much memory

   • Open Task Manager with Ctrl+Shift+Esc.
   • Click More details if needed.
   • Under the Processes tab, click the Memory column to sort by highest usage.
   • Look for apps whose memory use keeps growing even when you are not actively using them.

2. Close or restart the leaking process

   • In Task Manager, select the app using excessive memory.
   • Click End task.
   • Reopen the app and check whether memory usage returns to normal.
   • If it is a browser, close unused tabs and disable extensions you do not need.

3. Restart your PC

   • Click Start > Power > Restart.
   • This clears RAM and stops stuck background processes.
   • If performance improves after a restart but degrades again later, a specific app or service is likely leaking memory.

4. Disable unnecessary startup apps

   • Open Task Manager again and go to the Startup apps tab.
   • Right-click apps you do not need launching with Windows and choose Disable.
   • Focus on chat apps, game launchers, updaters, and utilities that run in the background.

5. Update problem apps, drivers, and Windows

   • For Windows updates, go to Settings > Windows Update and click Check for updates.
   • For app updates, open the affected program and install any available updates.
   • For drivers, right-click Start, choose Device Manager, expand categories like Display adapters or Network adapters, right-click the device, and select Update driver.
   • Memory leaks are often fixed in newer software versions.

6. Check Resource Monitor for deeper details

   • Press Windows key, type Resource Monitor, and open it.
   • Go to the Memory tab.
   • Watch the Commit, Working Set, and Hard Faults/sec values for processes that keep climbing.
   • If one app consistently grows over time, uninstalling or replacing it may be the best fix.

7. Run Windows Memory Diagnostic if crashes continue

   • Press Windows key, type Windows Memory Diagnostic, and open it.
   • Choose Restart now and check for problems.
   • This does not fix a software memory leak, but it helps rule out faulty RAM if your PC also crashes or shows errors.

Fix It Automatically with Kudu

If you do not want to hunt through Task Manager, startup lists, and background services yourself, Kudu can help automate the cleanup. It can identify unnecessary startup apps, reduce background clutter, and improve responsiveness so your PC is not constantly fighting for memory. It is a faster way to cut down the software bloat that often makes memory leak problems feel worse.

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