Are you using windows 10? Did you know Windows 10 includes a new memory compression feature designed to improve the performance of apps.
Usually when physical memory on a computer is consumed, the operating system removes the application from memory into a file on your hard drive called a paging file. The location of paged files stored is much lower than that of physical memory.
Windows 10 has another way of approaching and promoting compression, similar to the way we compress files, to keep other applications in memory. Instead of removing apps from slow paging files, a special process compresses objects in memory so they take up less space. The application in Windows 10 is a bit different than the Windows Runtime (Metro).
When you look at Task Manager, you see a process called a system that seems to evolve over time. You don’t witness a memory leak in the process, which is compressing memory at work. This is where all traditional Windows applications go through compressed memory. Microsoft builds memory compression into the Windows Runtime so when the memory is compressed, it displays with the correct processes.
If you want to see memory compression, open Task Manager and click More Details.
Then find the System section. You will see the whole process of memory compression.