What is high memory usage? How do I check it? And how do I fix it? This article will give you a brief introduction to high memory usage and tell you how to solve it step by step. These methods can solve most common Windows 10 high memory usage problems.

About High Memory Usage

What Is Computer Memory?

Computer memory is one of the most important parts of a computer. It includes RAM (Random Access Memory), ROM (Read Only Memory), and Cache (click computer booting to know the relationship between RAM and ROM). It enables CPU (Central Processing Unit) to access instructions and data quickly.

relationship between CPU, hard drive, and memory

The memory is used to temporarily store the operational data of CPU and the data exchanged with an external memory (such as a hard disk). To put it plainly, CPU will transfer the data that needs to be operated into the memory for operation when the computer is running and transmit the result out when the operation is completed.

Additionally, the program installed on hard drive disk is also loaded into memory for running. So, the main memory has great influence on computer’s stable operation.

Experience peak PC performance with MiniTool System Booster - Free up RAM for a smoother computing journey.

MiniTool System Booster TrialClick to Download100%Clean & Safe

How to Check Windows 10 High Memory Usage

Windows 10 high memory usage is usually related to RAM and virtual memory. Although memory is tightly connected with CPU and hard drive, the high memory usage problem still differs from high CPU usage and high disk usage problems.

If the computer has high memory usages problem, it will freeze (especially when a large program like a game is running). Sometimes, it will result in “Your computer is low on memory” error popping up.

In addition, computer users can also evaluate high memory usage Windows 10 on Task Manager. Follow the steps: right click the taskbar and select Task Manager.

high memory usage on Task Manager

How to solve high memory usage Windows 10 problem? The methods users take should depend on the causes to the problem. The reasons that may cause high memory usage Windows 10 are various, but the common causes are as follows.

  • Running too many programs at the same time.
  • Registry hack.
  • Defective program design.
  • Startup programs.
  • Insufficient disk space.
  • Virus or antivirus.
  • Other causes.
Can I Use Microsoft Copilot in Outlook? Get the Answer!
Can I Use Microsoft Copilot in Outlook? Get the Answer!

This post shows you how to enable and use Microsoft Copilot in Outlook and gives you some tips.

Read More

How to Fix Windows 10 High Memory Usage

Fix 1: Close unnecessary programs

If the high memory usage is caused by the computer running multiple programs at the same time, users could close the program to solve this problem. Or if a program occupies too much memory, users can also end this program to solve this problem.

Similarly, open Task Manager. Then right click the application you want to end up under Processes and choose End task.

close apps in Task Manager

Fix 2: Disable startup programs

Some programs run automatically when the computer starts up. If users don’t need these programs to run at startup, they can disable them.

Open Task Manager and then navigate to Startup page. Right click the programs that you don’t want to run at startup and then select Disable.

disable startup programs in Task Manager

Fix 3: Disable Superfetch service

Superfetch service is usually booted by default. This service is especially designed for traditional hard drive disk. It improves computer performance by only allowing the memory to load a fraction of the data needed to run common programs very quickly.

So, although it may cause high memory usage Windows 10, it shouldn’t be disabled if the computer disk is hard drive disk. However, if the computer disk is SSD, this service should be disabled.

Press “Windows + R” keys, and then type “services.msc” to open Services window. Scroll down to select Superfetch. Right click on it and select Stop to disable it.

disable Superfetch in Services window

Fix 4: Increase virtual memory

Virtual memory is a computer system memory management technology, which can make a part of disk space serve as memory to relieve memory stress. Virtual memory is actually a big file on hard disk named PageFile.sys.

How to set virtual memory in Windows 10? Here is a tutorial.

Step 1: Find virtual memory and click Change.

  • Open File Explorer and right click This PC, and then select Properties.
  • Select Advanced system settings in the pop-up window.
  • Click Settings in Performance box under Advanced page of System Properties
  • Navigate to Advanced page in the pop-up Performance Options window, and then click Change in Virtual memory box.

change virtual memory in Performance Options window

Step 2: Cancel virtual memory on partition C.

  • Uncheck Automatically manage paging file size for all drives.
  • Select partition C and then check No paging file, and then click Set to save it.
  • Then, click Yes in the pop-up warning window.

select partition C and then check No paging file, and then click Set to save it

Step 3: Set suitable virtual memory on non-system partition.

  • Select a non-system partition and then check Custom size.
  • Set a same value in Initial size and Maximum size to avoid system frequently requesting page files of different sizes, which can reduce the consume of system resource and improve operating efficiency.
  • Then click Set and OK to save.
Tip: The value should be as 1.5 times or twice that of the physical memory. The physical memory size can be found in Properties of This PC.

set virtual memory on non-system partition

Fix 5: Set Registry Hack

This feature can delete page file at shut down to release virtual memory.

Here is a tutorial.

Step 1: Press “Windows + R” keys and then type “regedit” to open Registry Editor.

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

Step 3: Find “ClearPageFileAtShutDown” and right click it to modify its value to 1, and then click OK to save it.

change ClearPageFileAtShutDown value to 1

Step 4: Restart the computer to boot up the Registry Hack setting.

Fix 6: Defragment hard drives

Defragmenting hard drives can also help to save memory space. Users can use Disk Defragmenter to complete defragmentation. Click disk defragmentation to know more information about it and more methods.

Open File Explorer and select Partition C. Then click Manage on the toolbar and click Optimize. Finally select Partition C and click Optimize.

defragment partition C

Additionally, computer users should delete unnecessary files on Partition C. The Space Analyzer feature of MiniTool Partition Wizard is recommended to perform this operation well. This feature also displays hidden files for users to conveniently delete them.

MiniTool Partition Wizard FreeClick to Download100%Clean & Safe

Here is the tutorial.

Step 1: Download MiniTool Partition Wizard and launch it to get its main interface. And then click Space Analyzer on the toolbar.

click Space Analyzer on the toolbar

Step 2: Select Partition C and click Scan. After scanning process is completed, select unnecessary files and right click them to delete.

Note: “.sys” files should not be deleted, otherwise computer can’t boot. Click Space Analyzer for detailed tutorial.
scan Partition C for space analyzer

Fix 7: Methods suitable for software problems

Windows 10 memory leak

Sometimes, the Windows 10 high memory usage is caused by memory leak, which is caused by defective software design.

Memory leak has great influence on computer server where programs will run for a long time. It will make memory space smaller and smaller and finally result in downtime.

As for personal computers, Windows 10 memory leaks will generally consume all the memory space. Although rebooting the computer can solve this problem temporarily, when the software runs again, the problem will occur again.

Because this problem is caused by defective software design, in order to solve this problem, users can download a patch, change version, or uninstall the defective software.


At the same time, some computer users complain that Chrome occupies too much memory usage, which is usually caused by the tab page single process design of Chrome. So, when users open too much tab pages, Chrome eats a lot of memory.

Luckily, if it is Chrome who occupies too much memory, users can close prefetch feature or install One Tab extension to solve this problem.

Way 1: Open Chrome and go to Settings. Scroll down to open advanced settings. Uncheck “Use a prediction service to help complete searches and URLs typed in the address bar” and “Use a prediction service to load pages more quickly”.

Way 2: One Tab extension can close all tabs and integrate them into one tab, which can release a huge amount of memory space.

Fix 8: Virus or antivirus

Sometimes, the Windows 10 high memory usage is caused by virus. If so, computer users should run a virus scan of all files. Users can run the antivirus programs that they trust, or they can run the built-in Windows Defender if they don’t install any other antivirus program.

Here is a guide to Windows Defender.

Step 1: Find Windows Defender.

  • Click Start button and select Settings.
  • Select Security & Update.

Step 2: Run Windows Defender.

  • Click Windows Defender and Open Windows Defender Security Center.
  • Click Virus & threat protection and then click Quick scan.

But there has been users reporting that antivirus programs, including Windows Defender may cause Windows 10 high memory usage. If so, they can end the process of antivirus programs in Task Manger.

antivirus program take up too much memory space

Fix 9: Adjust for best performance

Step 1: Open File Explorer, right click This PC, and then select Properties.

Step 2: Click Advanced system settings and then click Settings in Performance box.

Step 3: Check Adjust for best performance and click Apply. Finally click OK.

check Adjust for best performance and click Apply

Fix 10: Reinstall Windows 10

Some users report that Windows 10 high memory usage only occurs when they leave the PC alone for about 30-45 minutes. Or this problem occurs after they upgrade to Windows 10. They have adopted the above methods to solve it, but it seems that these methods don’t work.

At last, they have to reinstall Windows 10 or reset PC. Fortunately, the reinstallation or reset usually fixes the problem. So, reinstalling Windows 10 and resetting PC are also methods to solve the problem.

When users decide to reinstall Windows 10 or reset PC, backup is recommended in advance. If the reinstallation and reset have accidentally caused data loss, MiniTool Partition Wizard can help you recover them. Click recovering data for detailed tutorial.

Fix 11: Increase physical memory

If the physical memory is very small, users can add a memory bank. How to check memory size? Open File Explorer and right click This PC to select Properties.

check memory size

Generally speaking, 4G memory can satisfy simple needs in daily life. However, if users want to use computer to run large programs or to play games like H1Z1, at least 8G memory is needed.

But if users want to add memory, please note that the memory type must be the same. Users can refer to the parameters of memory bank installed on computer. Otherwise, incompatibility may appear.

Here are 11 ways to fix Windows 10 high memory usage. These methods can solve high memory usage caused by most common reasons.Click to Tweet

Bottom line

The above 11 methods can solve Windows 10 high memory usage caused by most common reasons. However, there are still other reasons to cause it and other methods to cause it.

If you have this problem and can’t solve it with the above methods, please leave a comment below for discussion. Surely, if you have better solutions for high memory usage, please leave a comment for sharing. Email to [email protected] for help if you have problems in dealing with high memory usage.

Windows 10 High Memory Usage FAQ

☘️ How do I fix high memory usage Windows 10?
  1. Close unnecessary programs.
  2. Disable startup programs.
  3. Disable Superfetch service.
  4. Increase virtual memory.
  5. Set Registry Hack.
  6. Defragment hard drives.
  7. Methods suitable for software problems.
  8. Virus or antivirus.
  9. Adjust for best performance.
  10. Reinstall Windows 10.
  11. Increase physical memory.
☘️ Why is my PC memory usage so high?
  1. Running too many programs at the same time.
  2. Registry hack.
  3. Defective program design.
  4. Startup programs.
  5. Insufficient disk space.
  6. Virus or antivirus.
  7. Other causes.
☘️ What is the normal memory usage for Windows 10?
RAM usage of 1.5 GB – 2.5 GB is about normal for windows 10. As for the percentage, it varies depending on the total amount of RAM on the PC.
  • linkedin
  • reddit