Thanks for the clarifications.
Your Windows 11 is still on version 23H2, which has reached the end of support (Nov 11, 2025). This means it will no longer receive updates.
The fact that Windows is out of date is usually the cause of the behaviors you're experiencing. Therefore, I think it's a good idea to first focus on updating Windows, as this alone may fix these issues.
Try upgrading to the latest version (25H2) by doing an In-place Upgrade using an ISO file.
It's a simple procedure, and you have the option to keep files, settings, and apps. Therefore, all your data is kept.
Download the ISO file to perform the procedure:
- Access the link below;
https://www.microsoft.com/en-us/software-download/windows11
- Under "Download Windows 11 Disk Image (ISO) for x64 devices", click "Select download" and select "Windows 11 (multi-edition ISO for x64 devices)";
- Click "Download";
- Choose the language and click on "Confirm";
- Then, click "64-bit Download".
- Wait for the download to finish and proceed to the procedure below.
After downloading the ISO, do the following:
- Double-click the ISO to run;
(After running the ISO, you may need to double-click the Setup file to start the procedure.)
- On the "Install Windows 11" screen, uncheck "I want to help make the installation of Windows better" and select "Change how Windows Setup download updates";
- On the next screen, select "Not right now" and click "Next";
- Accept the terms of use;
- On the "Ready to install" screen, select "Choose what to keep" and select what you want to keep.
(It is in this step that you must check "Keep personal files and apps" so that all your data is kept.)
- Click on "Install" and wait for the procedure to finish. Your computer may restart several times.
At the end of the procedure, your Windows 11 will be in the latest version (25H2), and some updates may already be installed. But check Windows Update to be sure.
After all updates have been installed, check if the Microsoft Store displays the install button and if you are able to install and run your games.
If you get any errors or the behaviors persist, please let me know.
Feel free to ask any questions you may have.