It has been reported that there are systems out there with Windows 11 operating systems that do not use the whole RAM memory installed in the system. If by any chance you are one of the unfortunate users that has encountered this issue, fear not, we have a solution for you.
Run the Windows Memory Diagnostic toolMemory Diagnostic tool is a built-in tool in Windows, it was designed to automatically find and repair memory issues and should be your first step toward resolving this issue.
If after reboot system still does not see and use whole available RAM, repeat this process and turn back ON paging. After you are done move to the next solution.
If the provided solution has not worked, uncheck the Maximum memory checkbox and save the changes. Move to the next solution.
In order to do this fix, you will need to enter BIOS on your system. How entering BIOS is different from system to system depending on your manufacturer, especially if it is a laptop this step you will have to do alone. Go to your motherboard manufacturer or laptop manufacturer and see how to enter BIOS.
Your BIOS might be different from ours and you might not have the System Agent Configuration option, in this case, go through the setting and try to locate Memory Remap Feature. If this feature is missing as well move to the next step.
Sometimes RAM memory cannot be slotted properly or just purely switching them in slots can solve the issue. Take RAM out, clean memory slots, clean motherboard connectors for them, and place them back in a different order.
If by any chance none of the methods worked, then the issue might be in the hardware itself, either memory banks themselves, motherboard, power supply, etc. If this is sadly the case, you will have to locate the issue and replace the faulty part.
If you are not technical enough for this adventure, the best solution is to take a PC to a computer repair shop.

Error Causes
You can prevent starting of app installations files if they have not come from the MS store inside Windows 11.
This can make your PC more secure because all apps in the store will have to be digitally signed and overall it can provide you with more control over what will be installed.
Follow the guide below to find out how can you easily turn this feature ON.
“0x800f081E-0x20003, The installation failed in the SECOND_BOOT phase with an error during BOOT operation”In case you don’t know, Microsoft distributes special “N” editions of Windows in Europe and the “KN” editions in Korea. These editions are the same as the standard editions of Windows except that they do not have the Windows Media Player as well as the multimedia playback features. Thus, when the Windows Upgrade fails with the error code and error message and it doesn’t provide much information as to why the update couldn’t be installed, there is something you can do about it to fix the error. Since Windows uses generic error codes and so if you see the error code 0x800f081e, you have to check the error log first. For more details, follow the instructions laid out below. Step_1: You need to navigate to C:$WINDOWS.~BTSourcesPanther and from there look for the text file named “setuperr.log” and open it with a text viewer/editor program like Notepad. Step_2: After opening the setuperr.log file, you should see content that’s similar to this:
C:WINDOWSSoftwareDistributionDownload80b2677d6e15a2a206625bb25a7124feamd64_Microsoft-Windows-MediaPlayer-Package~~AMD64~~10.0.17134.1. Error: 0x800F081E 2019-09-10 20:26:57, Error SP Operation failed: Add [1] package C:WINDOWSSoftwareDistributionDownload80b2677d6e15a2a206625bb25a7124feamd64_Microsoft-Windows-MediaPlayer-Package~~AMD64~~10.0.17134.1. Error: 0x800F081E[gle=0x000000b7]Note: From the content above, it is clear that the Windows Upgrade failed due to complete due to the Windows Media Player. It could be that the log file may contain other error messages and other error codes and if you see the error code 0x800f081e from the list, then you need to uninstall the Media Feature Pack. Step_3: You have to uninstall the Media Feature Pack.
Error Code 0x8024001e is most commonly associated with the installation of apps from the Windows store, although versions of the error have been present in multiple versions of the Windows operating system. At its most basic level, the error says that a program has not been installed, even after the installation wizard has run through to completion.
Common symptoms include:
The solutions to Error Code 0x8024001e are somewhat complex, so it is a good idea to get in touch with a computer repair professional if you do not feel confident in your ability to follow the steps below to complete. However, most users should be able to follow the steps below and achieve the desired results.
Error CausesThere are a couple of different causes that can lead to the appearance of Error Code 0x8024001e. In some cases, extraneous data left in the app cache can cause the problem. In other cases, particular processes may need to be manually reset to clear the problem. Last, but not least, unresolved updates may lead to Error Code 0x8024001e causing issues with downloaded and installed apps from the Windows Store.
There are three primary methods to address the appearance of Error Code 0x8024001e. These should work for all users, regardless of the specific cause for their machine. The methods below do require some advanced skills in computing, so be sure to contact a Windows repair technician if you have trouble following the instructions below.
Here are the top ways to repair Error Code 0x8024001e on Windows 10:
In many cases, simply clearing your app cache can resolve the errors that pop up when you are downloading, installing, or updating any apps that have come from the Windows store. This method may not perfectly resolve the problem every time, but it is a step that should always be done before any others.
Next, open up the Power User options by pressing both the Windows key and the X key at the same time. Choose “Command Prompt (Admin)” from the options that appear. Then type in the commands into the prompt, one at a time:
Restart your computer after these changes have been made so that all changes can take effect. You may be able to access the desired programs and apps after this is complete.
Sometimes, the best way to repair Error Code 0x8024001e is to simply open up the Window Registry tools and run the repair process. This will scan your registry for any errant entries, corrupted entries, or missing entries, repairing them automatically as the device is able to do. This process may take some time to complete, so plan accordingly.
After this process is complete, it is always a good idea to restart your computer to apply any changes that have been made. Reattempt to install or run the program in question one this is done.
Last, open up the Windows Update tools to check to see if any of your programs need to be updated or if your operating system needs to be updated. Install each of the updates, restarting your computer after the entire process has been completed so that they can fully take effect on your machine. You should be able to run the programs that had caused problems once this is complete.
It is important to keep up-to-date on your system and program updates to avoid future errors in installations and downloads from the Windows store.
In most cases, using the steps above should allow you to use the apps that you’ve downloaded from the Windows store without Error Code 0x8024001e popping back up. If the problem persists or if you have not been able to follow the steps listed above to remedy the error, it is a good idea to contact a qualified professional who is experienced in working with Windows 10 errors.
Error Causes