Check BIOS profiles, and RAM used on boot settings, and inspect the RAM sticks and modules manually. Update your graphics and hardware drivers to the latest versions and make sure the dual-channel configuration is installed correctly.
16GB RAM 7.95GB Usable Windows 10
RAM is an essential component to ensure faster memory transfer by coping with the processor and other components, making your computer much more efficient. Generally, faster RAM ensures faster-processing speed with the matched processor and other peripherals. However, being unable to use your RAM at its full potential can be a bummer.
As many users reported that Windows property window, Speccy or similar software, or the Task Manager showing that only a part of the total amount of RAM is currently usable by Windows. The rest of the unusually large amount of RAM is shown to be “Hardware Reserved”
The reason behind such a dilemma might be an outdated BIOS or if the memory module you inserted is not working. One reason behind this may be the memory has been reserved for the internal graphics adapter installed on your computer.
However, for a dedicated graphics card installed on your computer, it’s not the issue. Also, the unusual amount of RAM such as 1024 MB to 4181 MB is not normal, at all.
16GB RAM 7.95GB Usable Windows 10 – How to Solve
Before you jump into any solution method trying to fix the problem, you must know the operating system version you’re working on. As you might know, a 32-bit Windows 10 operating system installed can only use 3.5GB RAM no matter how much RAM is physically installed on your computer.
For using more, you need to install a 64bit operating system. To check the version of your operating system, go to the control panel and check the About your PC section. You can also go running, type msinfo32, and press Enter.
Look for System type in the right pane in the System Information window. For system type, the value is x86 means a 32-bit Windows 10 installed. If it is x64 then you have a 64-bit Windows 10 installed. Follow the described methods below to fix the issue.
RAM used on Boot
During the boot procedure when your system is turning on, the option in Windows is used to reserve RAM. Chances are that it is permanently and unnecessarily reserved a significantly large amount of RAM for it. To fix it, follow the steps below:
- First, open Run by pressing and holding the Windows key and pressing R.
- Type msconfig in the dialog box and press Enter.
- In the System Configuration window, Go to the Boot tab and select your operating system.
- Click on the Advanced Options button.
- Clear the checkbox next to Maximum memory in the upper right corner. You can see the maximum RAM that can be used by your system.
- Click OK to apply changes and restart your PC to check if the issue persists.
Fix the BIOS Settings
In BIOS settings, there are RAM profiles that control the memory or frequency of RAMs used by the system. For a separate dedicated video card installed, you have to make sure the internal graphic processing unit (iGPU) is turned off which is used in case you don’t have any external one.
To undo the changes, restart your PC to enter BIOS mode. To enter BIOS mode, look for the specific key to press shown in the lower part of the screen. Generally, it’s F1, F2, F12, or the Esc key. If you’re confused, search for your specific key searching by according to your operating system.
There is a Memory Map Feature for full access to the RAM installed on Windows. Make sure it is Enabled or turned On. Make sure to check XMP profiles in BIOS, as all high-performance RAM uses XMP profiles. If you don’t enable XMP your RAMs will run at your system’s standard specifications dependent on the CPU. Select the proper XMP profile to enable the right RAM usage.
Also, update your BIOS to the latest version by downloading it from the system manufacturer’s website. You can try Reset BIOS to the default setting and check if that works.
Check RAM Sticks
Any physical damage to the loose connection of the RAM sticks may also cause an unusable RAM problem. First, turn off your PC and open the case/ thermal glass of the CPU casing. Unplug the sockets of the RAM sticks and pull them out carefully.
Check if there are any connection problems or if the RAM sticks were plugged incorrectly. Make sure that the contacts are clean and remove any dust that may be inside the slots.
Outdated graphics and other drivers are the root cause of many hardware-related problems. Update your operating system and graphics drivers to the latest version to ensure everything runs smoothly. Turn automatic updates on so you don’t have to go through the hassle of updating the drivers or system manually.
Restart your PC to check if the issue is resolved.
If you have 4 memory slots try switching the 2 sticks into the 2 closest slots to the CPU or the 2 farthest slots. There might be a dead slot in one of them, causing the problem.
If none of the methods seem to work, chances are that your RAM sticks, motherboard, or CPU have internal hardware defects. Contact an experienced technician or certified repair shop to address the problem and leave it to the professionals.