We all know that when the system consumes a lot of RAM, it affects the performance of the computer. However, at some point, we found that Windows 11 was not using all the available RAM. The memory is used to temporarily store the files that the user is currently working on. If there is a problem with the memory, it will have a serious impact on the function of the computer. Today, we’re going to tell you why Windows 11 isn’t using all the available RAM and how to get Windows 11 to use all the RAM on your system.
Why Windows 11 Not Using all Available RAM on PC?
Actually, the computer will not use all available 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 available.
However, if you find that the OS can’t even utilize the available RAM, it could be due to a bad setup, a socket issue, or the RAM itself. In addition to this, some devices, such as graphics cards, also reserve a certain amount of RAM/memory.
Next, let’s take a look at the most effective ways to fix Windows 11 not using all RAM issue.
How to Fix Windows 11 Not Using All Available RAM?
1. Run the Windows Memory Diagnostic Tool
- Launch the Search menu by pressing Windows+S keys, enter Windows Memory Diagnostic Tool in the text field at the top, and click the relevant search result that appears.
- Now, select Restart now and check for problems from the two options listed here (recommended).
- Microsoft provides a dedicated built-in tool, Windows Memory Diagnostics, that can identify RAM problems and eliminate them automatically. so you can run the built-in tool if Windows 11 isn’t using all your RAM.
- Before restart the computer, save all open files to avoid data loss.
2. Check the page file
Press Windows+S to launch the search menu, enter View advanced system settings in the text field at the top, and click on the relevant search result that appears.
Click Settings button under Advanced tab.
Navigate to the Advanced tab in the Performance Options window.
Click Change under Virtual Memory.
Uncheck the box before Automatically manage paging file size for all drives.
Select the drive, check the No paging file option, and click the Settings button.
Click Yes in the System Properties window.
If all drives have a page file, repeat the process for all drives, then click OK at the bottom to save the changes.
Finally, restart your computer.
The paging file is a fixed space on the storage drive, which is used to temporarily store data when the RAM is filled up. If something goes wrong, you will notice that Windows 11 is not using all the RAM.
If it doesn’t work, revert your previous changes. Setting the page file is recommended.
3. Modify the available RAM
Press Windows+S to launch the search menu, enter System Configuration in the text field at the top, and click on the relevant search result that appears.
Now, go to the Boot tab and click on Advanced options.
Tick the Maximum RAM checkbox, enter the RAM installed on the system in the text field below, and click OK at the bottom.
Click OK again to save the changes and close the System Configuration window.
If prompted, restart your computer.
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 the RAM, making these modifications in the system configuration can help.
To calculate the value in the preceding text field, check the RAM installed in the system and multiply it by 1024 to find the value in MB (megabytes). For example, if your computer has 16 GB RAM, the entered value should be 16 x 1024 = 16384 MB.
4. Modify the registry
Press Windows+R to start the Run command, enter regedit in the text field, and click OK or Enter to start Registry Editor.
Click Yes on the User Account Control window.
Now, enter the following path in the address bar at the top and hit Enter. Alternatively, you can use the pane on the left to navigate the path:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management
Find and double-click the ClearPageFileAtShutdown DWORD to modify its value data.
Enter 1 under Value Data and click OK to save the changes.
Close the registry and restart the computer.
5. Enable memory remapping in BIOS
There are different ways to enter the interface and BIOS becaused of different manufacturer. You can get specific steps by checking the FAQ or support section of the OEM website. Follow the steps listed below.
Restart the computer, enter the BIOS by pressing the F12 key when the display is on, navigate to the Advanced tab, and select the System Agent Configuration option.
Now, select the memory remapping feature and enable it.
It is known that enabling memory remapping increases the available RAM for Windows on the system. The problem is that this feature is not available on all devices, check if you have it at first.
Once done, check that Windows 11 is now using all the available RAM.
6. Rearrange RAM modules
If you have various slots available, try rearranging the RAM modules. First, shut down the computer, open the back panel, remove the memory modules and replace their slots. Check that Windows 11 is now using all available RAM.
If Windows 11 still isn’t using all RAM, it’s might be possible that some sockets are dead. You can insert the same memory modules in all sockets and check the available RAM on the system each time.
Also, some systems require you to arrange RAM in a specific order when all slots are unused. For example, if you have four available slots but only use two memory modules, you may need to use the first and third slots.
7. Repair your computer
If you reach this part of the article after following the above methods and the problem persists, it may be a problem with the hardware itself, such as invalid slot, connection issue, or other issues.
In this case, we recommend taking your PC to a repair center, as the components we deal with here are fragile, the connections are complicated, and any misstep on your part can seriously damage the system.
Fix High RAM Usage in Windows 11?
If you have low RAM installed or if you are using too many programs at one time, your RAM usage may become high, which may manifest through poor system performance. Programs may lag or freeze, or the system may crash completely.