Shared memory is a mechanism that allows multiple processes to access the same memory space. This can be useful for sharing data between processes, or for creating a shared pool of memory that can be used by all processes. In Windows, there are a few different ways to check shared memory.
One way is to use the Task Manager. To do this, open the Task Manager and click on the Performance tab. Then, click on the Memory tab and select the Shared view. This will show you a list of all the shared memory segments in the system, along with their size, owner, and other information.