How to Reduce RAM Usage in Windows 11 (Fix High Memory Usage quickly)

RAM (Random Access Memory) is the short-term memory of your computer that stores the data your system needs to run apps and processes in real time. When your RAM runs out of space, your PC can slow down, freeze, or take longer to open programs, especially on Windows 11. If you’re noticing lag or high memory usage, it could be due to background apps, startup programs, memory leaks, or resource-intensive software that might consume too much RAM. However, you don’t need to upgrade your hardware right away, you can follow 6 easy tips shared in this post to free up RAM in Windows 11, improve performance, and make your PC run fast again.

How to free up RAM in Windows 11

RAM is used by Windows 11 to store actively running apps and background processes that the CPU needs to access quickly. This helps your system run programs smoothly and respond faster.

However, if too many programs start using RAM at the same time or if some apps don’t release memory properly after use, your available RAM gets filled up quickly. As a result, your PC may start to slow down, lag, or freeze during normal use.

Check What’s Using Your RAM (Task Manager)

Before you start changing settings, let’s first check which apps are actually eating your memory. This helps you find the real cause of high memory usage instead of guessing.

How to check RAM usage in Windows 11:

1. Press Ctrl + Shift + Esc to open Task Manager.
2. Click More details if it shows the simple view.
3. Go to the Processes tab.
4. Click the Memory column to sort apps by RAM usage.

Once you see the list:

• Look for apps using high memory (e.g., browser, unknown apps)
• If it’s an app you’re not using → close it
• If a browser is using too much RAM → reduce tabs or extensions
• If you see unknown or suspicious processes → consider running a malware scan
• If a specific app always uses high RAM → you may need to update or replace it

This step gives you a clear idea of where your RAM is going, so you can take the right action in the next steps.

Close Unused Apps and Browser Tabs

It sounds obvious, but it’s probably the biggest everyday cause of high RAM usage. Every open app and browser tab uses a portion of your RAM. When too many apps run at the same time, your available memory gets filled quickly. Even Modern browsers (Chrome, Edge, etc.) can easily eat gigabytes of RAM if you:

• Keep dozens of tabs open
• Run multiple profiles or extensions

What to do:

• Close apps you aren’t using right now.
• In your browser, bookmark or save tabs to a reading list instead of keeping them open.
• Disable or remove browser extensions you don’t actually need.

Even closing a single heavy website (like those with auto‑playing videos) can noticeably reduce memory usage.

Disable Startup Apps You Don’t Need

Many programs add themselves to the startup, which means they run in the background all the time and consume RAM even when you never open them. Over time, too many startup apps can slow down your system, increase boot time, and reduce the amount of free RAM available for tasks you actually care about.

Disabling unnecessary ones helps free up RAM immediately and keeps your system running more smoothly.

How to turn off startup apps in Windows 11:

1. Press Ctrl + Shift + Esc to open Task Manager.
2. Go to the Startup apps tab.
3. Look through the list and identify apps you don’t need to start automatically (Spotify, game launchers, chat apps, etc.).
4. Right-click on any app you don’t need and choose Disable.

You can still use these apps normally; they just won’t launch on boot and sit in RAM for no reason.

Disabling just a few unnecessary startup apps can reduce RAM usage right after boot and make your PC feel faster every time you turn it on.

Reduce Background Apps in Windows Settings

Windows 11 allows some apps to run in the background so they can send notifications, sync data, and update content. That’s useful, but not every app deserves that privilege because it silently consumes RAM and system resources even when you’re not using them. Limiting them helps free up memory and reduces system load.

To manage background apps:

1. Press Windows + I to open Settings
2. Go to Apps > Installed apps.
3. Click the three dots (⋮) next to an app and choose Advanced options (for apps that support it).
4. Under Background apps permissions, select Never or Power optimized.

Apply this to apps you rarely use or don’t need real‑time updates from.

Many apps you install automatically enable background activity. Turning this off for unnecessary apps can significantly reduce RAM usage over time and battery usage (if you’re on a laptop).

Scan for Malware and Problem Apps

Sometimes high RAM usage isn’t caused by normal apps, it can be due to malware, unwanted programs, or buggy software running in the background. These programs may not be visible, but they can continuously consume memory and slow down your system. If your memory usage is always high, even right after a restart with no apps open, it’s worth checking for malware.

Run a full scan with Windows Security (Windows Defender):

• Press Win + I and go to Privacy & security > Windows Security.
• Click Virus & threat protection.
• Choose Scan options > Full scan and let it complete.

If you still see strange behavior, consider a reputable on‑demand scanner (like Malwarebytes Free) or a free antivirus, and run a one‑time scan.

After cleaning, reopen Task Manager and check whether any unknown apps are still using a lot of memory. If you don’t recognize an app and never use it, uninstall it from Settings > Apps > Installed apps. (Click the three dots (⋮) next to the app > Select Uninstall)

This step won’t magically double your RAM, but it can remove hidden processes that constantly eat memory in the background.

Turn Off Unnecessary Visual Effects

Windows 11 looks modern and smooth thanks to animations, transparency, and other visual effects, but these can use extra system resources, including RAM. On systems with limited memory or old computers, these effects can slightly increase RAM usage and impact performance.

Turning off unnecessary ones reduces the load on your computer and helps free up RAM for important tasks.

To adjust performance options:

• Open Settings using Windows + I.
• Select Accessibility in the left menu.
• Click on Visual effects and Toggle off Animation effects and Transparency effects.

Advanced/System Properties (Best for maximum performance):

1. Press Windows + R, type sysdm.cpl, and press Enter
2. In the System Properties window, go to the Advanced tab.
3. Under Performance, click Settings….
4. Select Adjust for best performance, or manually uncheck:
   • Animate windows when minimizing and maximizing
   • Animations in the taskbar
   • Transparency and other visual effects
5. Click Apply, then OK.

Your system might look a bit more basic, but this can improve overall system responsiveness and reduce RAM usage, especially on older machines or those with 4GB–8GB of RAM.

Adjust Virtual Memory (Advanced Users)

If your system frequently runs out of RAM, Windows uses something called virtual memory (also known as the paging file). It temporarily uses a portion of your storage (SSD/HDD) as extra memory. It’s much slower than RAM, but it can help avoid crashes.

While it’s slower than real RAM, increasing virtual memory can help reduce lag and prevent crashes when your RAM is full.

Steps to Adjust Virtual Memory in Windows 11

• Press Windows + R, type sysdm.cpl, and press Enter
• Go to the Advanced tab
• Under Performance, click Settings
• Go to the Advanced tab again
• Under Virtual memory, click Change

Ensure Automatically manage paging file size for all drives is enabled if you’re not sure what to set.

If you know what you’re doing and have a fast SSD, you can set a custom size (initial and maximum) based on your RAM, to do this

• Uncheck Automatically manage paging file size for all drives.
• Select your system drive (usually C:). Choose Custom size and set:
• Initial size: 1.5× your RAM and Maximum size: 2–3× your RAM
• Click Set → OK, then restart your PC

Note: Misconfiguring this can make things worse so be cautious here.

Virtual memory doesn’t replace RAM, but it helps your system stay stable when memory is low—especially useful on PCs with 4GB or 8GB RAM.

When It’s Time to Upgrade Your RAM

If you’ve tried everything above and Windows 11 still feels slow or 100 RAM usage, your system might not have enough RAM for your workload. It may be time to upgrade your RAM.

Consider upgrading if:

• Your RAM usage is always above 80–90%
• Your system slows down even with basic tasks
• You frequently use heavy apps (browsers, editing tools, games)

Recommended RAM in 2026:

• 4GB RAM: Bare minimum; expect frequent slowdowns
• 8GB RAM: Okay for light work, browsing, and media
• 16GB RAM: Comfortable for multitasking, light gaming, content creation

Before you upgrade:

• Check how much RAM you have: Settings > System > About.
• Look up whether your laptop/desktop supports RAM upgrades and what type it uses.

Software optimizations can help a lot, but if your system still struggles, upgrading RAM is the most effective long-term solution.

Frequently Asked Questions