Windows OS Under the Hood! What is the Registry? The Registry is the primary database for every Windows system. Registry hold settings. Registry is critical, without it, Windows won’t run!!! We use the ‘regedit’ (Registry Editor) utility to manually edit the Registry. The Registry has five root keys into which all data is organized. HKLM (Hkey local machine)–defines all the settings for a particular computer. Processes Every program currently running on a system is a process. Processes all use process IDs (PID) We use utilities like Task Manager to kill errant processes. At any moment our computer can be running hundreds of programs. These programs can be broken down into…