Fortunately, clearing your computer’s RAM can often fix these issues and get things running smoothly again. Below are some easy ways to get this done without having to replace any hardware.

If after you run Windows Memory Diagnostics you see message Your computer has a memory problem, here's what you need to do.

Insufficient RAM: If your PC does not have enough memory (RAM), running too many programs, or even browser tabs, at once can cause your computer to freeze due to a lack of system resources.

If Extreme Memory Profiles (XMP) is not working for you and enabling it doesn't change your memory speed, follow the solutions mentioned in this post.

Also ensure that you have installed the latest drivers for your PC. How to fix high memory usage in Windows 10 Step-1: Download and install the Windows Driver kit ...

Running out of memory can cause performance issues. Here's how to see how much memory is in your PC, and how fast it is.

How much memory you need to give Minecraft depends on what version of the game you are playing, how big your world is, and how much memory your Windows computer has.