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How to Solve Windows 10 High RAM Memory Usage Issue [10 Fixes]

Brithny updated on Jan 21, 2021 Partition Master | How-to Articles

Don't worry if your computer gets stuck and Windows Task Manager warns "High memory usage". On this page, we will guide you to easily fix high memory usage issue from your computer with the following resolutions:

What Is High Memory Usage

Windows 10 high memory usage

High Memory Usage is a state that Windows computers' RAM, ROM, or Cache usage grows to an extremely high level. Windows 10 high memory usage is related to RAM and virtual memory.

So what will happen when your computer is caught with a high memory usage issue? And what causes this error? Check it out.

Symptoms of High Memory Usage Causes of High Memory Usage
  • Computer slows down
  • Applications won't respond
  • File transfer stuck, programs/software get stuck
  • Unable to download or upload files, programs
  • Registry hack
  • Virus attack
  • Disk file system error
  • Running too many programs at one time
  • Insufficient physical and virtual memory
  • Too many programs start in the startup

So how to fix "high memory usage" or "High RAM memory usage" issues? How do I reduce or fix the high memory usage in Windows 10? 

Follow through this quick guide: 


Define High Memory Usage

Define whether your computer is with high memory usage issue.


Pick A Practical Fix

Pick a practical fix for high memory usage in Windows 10/8/7.


Part 1. Define Windows 10's High Memory Usage Error

As Windows' high memory usage shares the same symptoms as high CPU and high disk usage, therefore, it's important to define whether your computer is with high CPU usage, high disk usage, or high memory usage issue.

When a computer has a high memory usage problem, it will freeze while running a program. You may even get an error pop up, warning that "Your computer is low on memory". 

High memoru usage and low memory warning

Try the following steps to define if your computer is with high memory usage, high CPU, or high disk usage error:

Step 1. Press Ctrl + Alt + Del keys and select "Task Manager".

Step 2. At the Process tab, check the usage state of CPU, Memory, and Disk.

1. The CPU column reaches up to 99% or even 100%, it's a "High CPU Usage" issue. Refer to Fix 99% or 100% High CPU Usage for help.

Computer with high CPU usage issue

2. The Disk column shows high usage or even displays 100%, it's a "High Disk Usage" issue. Follow 100% Disk Usage to fix this problem.

Disk shows high usage

3. The Memory column displays 70%, 80%, 90%, or 99% used, it's a "High Memory Usage" issue. Pick a practical fix in Part 2 to resolve this issue on your own.

High Memory Usage Figure 1:

Open Task Manager

High Memory Usage Figure 2:

Check memory usage state in task manager

Part 2. 10 Fixes for High Memory Usage Issue in Windows 10 [in 2021]

Here is a list of all tested fixes that are recommended by EaseUS computer experts. Just pick one and follow to fix Windows 10 high memory usage issues immediately:

  1. #Fix 1. Fix Disk File System Error
  2. #Fix 2. Close Unnecessary Programs/Applications
  3. #Fix 3. Disable Startup Programs
  4. #Fix 4. Defragment Hard Drive & Adjust Best Performance
  5. #Fix 5. Increase Virtual Memory
  6. #Fix 6. Disable Superfetch service
  7. #Fix 7. Set Registry Hack
  8. #Fix 8. Increase Physical Memory
  9. #Fix 9. Disable NDU in Registry
  10. #Fix 10.Clean Up Virus

If you are having a similar problem in older Windows OS, like Windows XP, you can also give these fixes a try. 

Method 1. Fix Disk File System Error

File system error is a major reason that may cause false information to the computer such as high memory usage or high CPU usage. Professional partition manager software - EaseUS Partition Master will do to help. It's easy for all levels of Windows users. 

Check and Fix System Error

Step 1. Open EaseUS Partition Master on your computer. Then locate the disk, right-click the partition you want to check, and choose "Check File System".

Check Partition - Step 1

Step 2. In the Check File System window, keep the "Try to fix errors if found" option selected and click "Start".

Check Partition - Step 2

Step 3. The software will begin checking your partition file system on your disk. When it has completed, click "Finish".

Check Partition - Step 3

Method 2. Close Unnecessary Running Programs/Applications

When your computer is with high memory usage, you can try to close some unnecessary running programs and applications to fix this issue.

Step 1. Open Task Manager by right-clicking on the Windows icon and select "Task Manager".

Step 2. Go to the process tab, find the running programs that are taking high memory but you don't need it at all.

Step 3. Click the unnecessary programs and select "End Task". 

Close unnecessary programs

Method 3. Disable Programs Running from Startup

Disabling programs running from Startup will effectively decrease the system load and saving quite a lot CPU memory space.

Step 1. Press Ctrl + Alt + Del keys, select "Task Manager".

Step 2. Click on "Startup" in Task Manager, right-click the applications that you don't want to run from Startup, and select "Disable".

Disable programs from startup

Method 4. Defragment Hard Drive & Adjust for Best Performance

It will also help to save quite a lot of memory space by defragmenting hard drives. You can also refer to a manual way to defrag and optimize the disk for its best performance.

Defragment hard drives:

Step 1. Press "Windows + R", type: dfrgui, click "Defragment and Optimize Drives" to open this app.

Step 2. Click on the hard drives (C: drive for example) you want to defragment and click "Optimize".

Defrag hard drive

Wait for the process to finish the defragment process. Do remember to restart the computer when the process completes.

Adjust for the best performance:

Step 1. Right-click "This PC" and select "Properties".

Step 2. Click "Advanced system settings", click "Settings" under Performance.

Step 3. Check "Adjust for best performance", click "Apply" and "OK" to confirm.

Adjust best performance for high memory usage issue

Method 5. Increase Virtual Memory

Virtual memory makes use of part of disk space to serve as memory so as to release computer memory stress. Therefore, when your computer is with high memory usage issue, you can try the following steps to increase virtual memory:

Step 1. Right-click on This PC, select "Properties". 

Step 2. Click "Advanced system settings" in the pop-up window.

Step 3. Go to the Advanced tab, click "Settings..." under the Performance section.

Increase virtual memory

Step 4. Navigate to the Advanced tab, click "Change" under the Virtual memory section.

Change virutal memory size

Step 5. Uncheck "Automatically manage paging file size for all drives".

Step 6. Select C drive, check "No page file", and click "Set". 

Step 7. Click "Yes" to continue.

Confirm to increase virutal memory

Step 8. Select a non-system partition, check "Custom size", and set the same value in Initial Size and Maximum Size. 

The value size is recommended to be twice big as the physical memory on your computer.

Step 9. Click "Set" and "OK" to save the changes.

Save changes to increase virtual memory

Method 6. Disable Superfetch Service

Step 1. Press Windows + R, type services.msc into the Run box and click "OK".

Step 2. Locate and right-click "Superfetch" > select "Properties" > click "Stop" on the pop-up windows.

Step 3. Click "Disabled" from the 'startup type' drop-down menu.

fix service host superfetch high disk usage - disable superfetc in service

Method 7. Set Registry Hack

This method will release some virtual memory on your computer by deleting page files in the Registry. Here is how to do so:

Step 1. Press Windows + R keys, type regedit to open the Registry Editor.

Step 2. Navigate to: HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Control/Session Manager/Memory Management.

Step 3. Find and right-click ClearPageFileAtShutDown, select to modify its value to "1" and click "OK".

Set registry hack to fix high memory usage

Method 8. Increase Physical Memory

Logically, when your computer is with a high memory usage issue, you can add a new memory card to your computer so to extend the physical memory.

You need to first check out the memory type by referring to the parameters of memory on your computer. Here is how to increase a physical memory on your PC:

Step 1. Check the physical memory size: Right-click on This PC and select "Properties".

Step 2. Open Task Manager and go to the Performance tab, click "Memory".

Step 3. Check out the speed, size of the memory to decide which type you'll need.

Check physical memory type

Step 4. Then purchase a new memory card, add it to your PC.

After adding the new memory to your computer, restart the PC and it will automatically detect the new memory.

Method 9. Disable NDU in Registry

Note: EaseUS technical support experts suggest this method may affect the usage of internet connection. 

If you would like to try, here are the steps:

Step 1. Type regedit in Windows Search and click Registry Editor to open it.

Step 2. Go to: HKEY_LOCAL_MACHINE/SYSTEM/ControlSet001/Services/Ndu.

Open registry

Step 3. Right-click on the Start DWORD and select "Modify". 


Step 4. Change its value to 4, click "OK" to save the changes.

Disable NDU to fix high memory usage

After this, restart your PC and the high memory usage issue should be resolved.

If your computer internet connection gets disabled, we suggest you repeat the steps and change the Start word value back to the previous number - 2. 

Method 10. Clean Up Virus

Sometimes, virus infection or malware may also take up high usage of memory on your PC. The best way out is to run antivirus software on you PC to clean up all existing virus, malware immediately:

Step 1. Download and install anti-virus software on your computer.

Step 2. Run the anti-virus software and choose to scan your whole computer drive.

Step 3. Select to clean up all found virus or virus-infected files or devices.

Bonus Tips: How to Avoid High Memory Usage Issue on Windows 10

After you fixing Windows high memory usage on Windows 10/8/7, some of you may want to know why is the memory usage so high and how to prevent this issue from happening again.

Here, we'll conclude the causes of high memory usage and offer tips to protect your Windows 10 computer from this issue. 

Why Is My Memory Usage So High in Windows 10

When you get Windows 10 full memory usage error or receive a high disk usage warning, the RAM or memory in Windows 10 is not really full. Your computer memory may have the following issues:

  • Memory leak.
  • Registry hack.
  • Low space due to high usage by multiple apps or big installation patches.
  • Memory got taken up by a large number of useless junk files.

How to Avoid High Memory Usage in Windows 10 - Tips

Here are some tips that you can follow to avoid high memory usage issues in Windows 10/8/7. See how to set your computer with the best performance: 

  1. #1. Add a big enough memory card to the PC
  2. #2. Run virus cleaner regularly
  3. #4. Disable unnecessary programs from Startup
  4. #5. Release virtual memory from hard drive
  5. #6. Fix file system error and defrag hard drive regularly

Take Action, Keep Your Computer from High Memory Usage Issue

On this page, we offered tips to help you define is your computer with high memory issue or not. And we also collected 10 practical fixes to resolve high memory usage, and listed tips to help you avoid this issue.

Besides managing RAM and virtual high memory usage issues, we also suggest you apply EaseUS disk management software to make your computer running smoothly again. EaseUS Partition Master helps to manage partitions, make full use of disk space and optimize disk performance to the best state.

Now it's your turn. Take action and keep your computer from the high memory usage issue, making it running smoothly again. 

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