Windows 11 not using all available RAM? Fix now

At some point, we have all noticed that our system consumes a lot of RAM, thus affecting its performance. But some users are reporting the opposite, with Windows 11 not using all available RAM.

Memory is used to temporarily store the files you are currently working on, and problems with it can have a serious impact on your computer's functionality.

The errors we deal with here are tricky because most users are unable to determine the root cause and there isn't much data on the internet to troubleshoot and eliminate the problem.

In the following tutorial, we’ll list the reasons behind this and ways to make Windows 11 use all the RAM on your system.

Why isn't Windows 11 using all the RAM on my PC?

First of all, your computer never uses all available memory or RAM. For example, the Dell Inspiron laptop used to write this article has 16 GB of RAM installed, of which only 15.7 GB is usable.

#However, if you notice that the operating system cannot even utilize the available RAM, this could be due to a setup error, a slot issue, or the RAM itself.

In addition, some devices, such as graphics cards, also reserve a certain amount of RAM/memory.

By now you are quite familiar with the concept and can better solve problems. Now let us introduce you to the most effective fixes to eliminate Windows 11 not using all RAM issue.

What should I do if Windows 11 is not using all the RAM?

1. Run the Windows Memory Diagnostic Tool

1. Press Windows S to launch the Search menu and enter in the text field at the top Windows Memory Diagnosis Tools, and then click the relevant search results that appear.
2. Now, select Restart now and check for issues from the two options listed here (recommended).

#Microsoft provides a dedicated built-in tool, Windows Memory Diagnostic, that can identify RAM problems and eliminate them automatically. Your primary method should be to run this tool when Windows 11 is not using all of your RAM.

Remember to save all open files to avoid data loss as the computer will restart.

2. Check the page file

1. Press Windows S to launch the search menu and enter in the text field at the top to view Advanced system settings and click on the relevant search results that appear.
2. Click "Settings" under "Performance" in the "Advanced" tab.
3. Navigate to the Advanced tab in the Performance Options window.
4. Click Change under Virtual Memory.
5. Uncheck the Automatically manage paging file size for all drives checkbox.
6. Select the drive, check the No paging file option, and click the Settings button.
7. Click Yes in the warning box that appears.
8. If all drives have the page file, repeat the process for all drives and click OK at the bottom to save the changes.
Finally, restart your computer for the changes to take effect.

The page file is a fixed space on the storage drive used to temporarily store data when RAM (memory) starts to fill up. If something goes wrong, you may notice that Windows 11 isn't using all of your RAM.

If disabling the page file does not resolve the issue, revert your previous changes as it is recommended to set the page file.

3. Modify available RAM

1. Press Windows S to launch the search menu, enter System Configuration in the text field at the top, then Click on the relevant search results that appear.
2. Now, go to the Boot tab and click on Advanced Options.
3. Check the Maximum Memory checkbox, enter the RAM installed on your system in the text field below, and click OK at the bottom.
4. Click "OK" again to save changes and close the System Configuration window.
5. If prompted, please restart your computer.
6. If it doesn't work, uncheck the Maximum memory checkbox in the BOOT Advanced Options window and save the changes.

If your Windows 11 computer is not using all of its RAM, making these modifications in the system configuration can help.

To calculate the value in the previous text field, check the RAM installed in your system and multiply it by 1024 to find the value in MB (Megabytes). For example, your computer has 16 GB RAM, so the value to enter becomes 16 x 1024 = 16384 MB.

4. Modify the registry

1. Press Windows R to start the run command and enter regedit## in the text field #, then click OK or hit Enter to start Registry Editor.
Click
2. Yes on the pop-up UAC (User Account Control) prompt.
Now enter the following path in the address bar at the top and hit
3. Enter. Alternatively, you can use the left pane to navigate the path: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management<strong></strong>##Find and double-click the
ClearPageFileAtShutdown
4. DWORD to modify its value data. Enter
1
5. under Numeric Data and click OK to save changes. Close the registry and then restart the computer.
6. 5. Enable memory remapping in BIOS

The method and interface for entering BIOS vary from manufacturer to manufacturer. Therefore, we recommend that you check the FAQ or support section of the OEM website for specific steps. The steps listed below should give you an idea.

Restart the computer, press the

F12
1. key when the display lights up to enter BIOS, navigate to the Advanced tab, and select System Agent Configuration options. Now, select
Memory Remapping Feature
2. and enable it.
It is known that enabling memory remapping increases the RAM available to Windows on your system. However, this feature is not available on all devices, so check if you have it before proceeding with this method.

Once completed, check if Windows 11 is now using all available RAM.

6. Rearrange the RAM modules

If you have a variety of slots available, rearranging the RAM modules may help. To do this, turn off the computer, open the back panel, remove the memory modules and replace their slots. Check if this solves the problem.

If it still exists, it's also possible that some slots have expired. To verify, insert the same memory modules in all slots and check the available RAM on the system each time.

Also, some systems require you to arrange the RAM in a specific order when all slots are unused. For example, if you have four slots available but are only using two memory modules, you may want to use the first and third slots.

7. Take your computer to a repair center

If you have reached this part of the article after performing the above methods and the problem persists, it may be an issue with the hardware itself.

It could be a dead or malfunctioning slot, a connection issue, or other similar issues.

Memory (RAM) Module

In this case we recommend taking your PC to a repair center as the components we deal with here It's fragile, the connections are complicated, and any mistake you make can seriously damage your system.

How to solve high RAM usage issue in Windows 11?

If you have low RAM installed or you are using too many programs at once, RAM usage may become high, which may show up through poor system performance. Programs may lag or freeze, or the system may crash entirely.

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