How to Open Regedit

The Windows Registry is a database that stores settings and options for Microsoft Windows operating systems. It contains information and settings for hardware, operating system software, most non-operating system software, and per-user settings. The registry also provides a window into the operation of the kernel, exposing runtime information such as performance counters and currently active hardware. You can use the Registry Editor to make changes to your computer's registry entries, which can be useful for hardware troubleshooting and virus removal.