How to Fix Windows 10 Not Using All RAM🔥

Jerry updated on Jun 11, 2024 | Home >Computer Instruction

Random Access Memory (RAM) is an important component for the efficient performance of your computer. Windows 10 is supposed to use a large section of your RAM for resource-demanding tasks. Despite that, it's possible to encounter Windows 10 not using all RAM issues in some situations. What leads to this problem? How can you fix it? This tutorial from EaseUS seeks to answer these questions in detail. Keep reading to learn more.

Always Backup Your PC for Data Security

Before fixing issues with your RAM, it's important to back up your data for safety. You can do that easily via EaseUS Todo Backup. This free backup and restore software has proven its efficiency in safeguarding PC data against damage or loss. It allows you to securely back up your files to different platforms and retrieve them when needed.

EaseUS Todo Backup image

Todo Backup lets you save your files to the network, local storage, cloud, NAS, or external hard drive. The tool supports backup strategies like full, incremental and differential backups. You can perform real-time, daily, weekly, or monthly backups. EaseUS Todo Backup allows you to restore files to their original or new location when retrieving them. Ensure you download this data backup tool today to safeguard your files.

How to Fix Windows 10 Not Utilizing All RAM

Your device needs to fully utilize its RAM for the best performance. You can apply the following fixes to ensure Windows 10 utilizes all the RAM:

Method 1. Modify System Configuration Settings

Your RAM could be under-utilized if you've set the system to only use a portion of it under the "Maximum memory" setting of your system configuration. You can modify this setting to ensure optimal RAM utilization as follows:

Step 1. Launch the Run dialog box. Type "msconfig" and select OK to access System Configuration settings.

Step 2. Click "Boot" and then "Advanced options."

click Boot and then Advanced options

Step 3. Navigate to the "Maximum memory" option. Uncheck it and click the OK button.

navigate to Maximum memory

Step 4. Lastly, click "Apply" then "OK." Reboot your PC to effect the changes and use your RAM fully.

Share this article on your social platforms to help others solve the Windows 10 not using all RAM errors.


Method 2. Change BIOS Configuration

You need to configure BIOS correctly for your RAM to work optimally. First, you need to enable memory remapping in your BIOS configurations. You also need to adjust your AGP video aperture size. Check these steps:

Step 1. Reboot your system. Press DEL, ESC, F2, or F10 to open BIOS.

Step 2. Once on your BIOS settings, navigate to the "Advanced" or "Chipset" settings menu (this varies depending on your device brand).

Step 3. Set the "Memory Remap Feature" to "Enabled."

enable Memory Remap Feature

Step 4. Next, check the memory allocated to the AGP video aperture and ensure you set it to a minimum value. Exit BIOS and restart your system.

Method 3. Update BIOS

Your PC's RAM may fail if you run an outdated BIOS version. You can fix the issues by updating BIOS as follows:

Step 1. Type "msinfo32" in the Run dialog box. Choose "OK" to open the "System Information" window. Note down the information about your BIOS version and exit the Window.

go to System Information window

Step 2. Browse to your device manufacturer's website. Enter the serial number for your computer to check for driver updates.

Step 3. If a BIOS update is listed, click on it and select the "Download" button.

Step 4. Navigate to the download file location on your PC and click on it. Follow the onscreen steps to install the BIOS update on your device.

More articles related to updating BIOS on computers:

Method 4. Upgrade Windows

Bugs may accumulate in your PC if you fail to update Windows for a long time. This could affect how the hardware components of your device work (including the RAM). A Windows update comes with quality fixes for common bugs on your device. You can upgrade your Windows 10 as follows:

Step 1. Press the Windows logo key and type "Update Windows." Hit Enter to search for Windows updates on your device.

Step 2. Click the "Download" button when the system finds updates.

click Download

Step 3. Restart your computer when you finish installing the updates. 

⭐Note: It is highly recommended that you back up your data or system before updating Windows. You can try EaseUS Todo Backup Free.

Method 5. Identify RAM Issues

Physically examine your RAM to identify any faults. You can check for any broken clips or cracks. You can also unplug the cords and change the arrangement of your memory modules. You can also use a memory diagnostic tool to check for RAM issues as follows:

Step 1. Type "memory diagnostic" in the search box and hit Enter.

Step 2. Select "Restart now and check for problems" when the "Windows Memory Diagnostic" window appears.

choose Restart now and check for problems

Step 3. Your device will restart and check for memory issues. If the system detects an error, you'll receive a notification.

Method 6. Manage Virtual Memory

Virtual memory helps extend your computer's physical memory. If you don't configure virtual memory settings properly, you may sometimes encounter issues with your RAM. To fix problems with your RAM, you can make the following changes to the virtual memory.

Step 1. Open the Run dialog box, paste the following file path, and hit Enter:


Step 2. Click on the "Advanced" tab. Browse to "Virtual memory" and select "Change."

go to Virtual memory and select Change

Step 3. Uncheck "Automatically manage paging file size for all drives." Click "OK."

Step 4. Select each listed drive and choose "No paging file." Click OK.

choose No paging file and click OK

Why Windows Won't Use Full RAM

The common reasons for this issue include the following:

  • Memory allocation for hardware. Some hardware components in your system could use part of your RAM. 
  • Virtual memory settings. The Virtual memory feature may consume a significant chunk of your RAM if enabled.
  • BIOS settings. Incorrectly configured BIOS settings may affect how the system utilizes the RAM.
  • 32-bit OS version. The system will only utilize 4GB of RAM for the 32-bit operating system version. It would help if you considered upgrading to 64-bit for full RAM utilization.
  • RAM issues. Windows may fail to use all RAM if a section of it is faulty and rendered unusable.
  • Outdated BIOS. An outdated BIOS may significantly impact how your RAM works.

Share this article on your social platforms to help others solve the Windows 10 not using all RAM errors.


To Wrap Things Up

The "Windows 10 not using all RAM" issue could arise due to a 32-bit OS version or incorrect system configuration settings. This may also occur because of an outdated BIOS or faulty RAM. This tutorial has discussed six ways to fix the problem. Please remember to save your files using EaseUS Todo Backup before fixing the problem.

EaseUS Todo Backup is a dependable backup tool. It allows you to save files to different locations and retrieve them when needed. The application supports incremental, differential, and scheduled backup techniques. Ensure you download the tool today for the perfect experience.

FAQs on Computer Not Using All RAM Windows 10

Check these frequently asked questions.

1. Why Is Windows 10 Using Half of My RAM?

This could happen if you're using an integrated graphics card. In this scenario, part of your RAM is system-reserved. You may also experience this issue due to:

  • Outdated BIOS.
  • Faulty RAM.
  • Virtual memory settings.
  • Having a 32-bit OS version.
  • Memory allocation for hardware.

Ensure you check these issues to resolve the problem.

2. How to Clear RAM Cache in Windows 10?

You can do that using Disk Cleanup as follows:

  • Step 1. Type Disk Cleanup on the search bar. Next, hit Enter to open it.
  • Step 2. Choose your C drive and hit Enter.
  • Step 3. Select the files you want to delete, including the temporary files. Click OK to clear the selected files.

3. How to Check If All RAM Is Being Used?

Follow these steps:

  • Step 1. Open Task Manager.
  • Step 2. Click on the Performance tab.
  • Step 3. Navigate to the Memory section and check the information about your RAM utilization.

4. Do I Need to Update the BIOS for a New RAM?

Yes. It's important to update BIOS to ensure the proper functioning of your computer once you've installed new hardware on your computer. This helps to prevent any incompatibility issues.

Was This Page Helpful?


Updated by Jerry

"I hope my articles can help solve your technical problems. If you are interested in other articles, you can check the articles at the bottom of this page, and you can also check my Facebook to get additional help."

Read full bio

Totalav antivirus software

EaseUS Data Recovery Services

Request a free evaluation >>

EaseUS data recovery experts have uneaqualed expertise to repair disks/systems and salvage data from all devices like RAID, HDD, SSD, USB, etc.