Garbage collection in C# not carried out. Why?

Question

I have tried a simple experiment to verify the functionality of the garbage collector. Referencing 3.9 Automatic memory management (MSDN) about automatic memory managem

Answer 1

Even if it did de-allocate the memory internally, it's under no obligation to return it to the operating system. It will assume that more memory will be requested in the future and recycle the pages. The operating system's number knows nothing of how the program has chosen to use the memory it has claimed.

If you actually want to claim and release memory explicitly you'll have to call VirtualAlloc() through Pinvoke unsafe code.