Run the app and scroll down the list of processes and you should see RobloxPlayerBeta.exe There's two processes with the same name, select the one with the highest Private Bytes. You have to run it as an administrator, or it won't work. Procexp works both with 64-bit and 32-bit (I think, I don't have 32-bit though), so you don't necessarily have to use procexp64 for 64-bit or procexp32 for 32-bit. There are three exe files procexp, procexp64, and procexp32.
Download an app called Processor Explorer: ĭownload the zip and extract it.