According to wiki " The Windows Registry is a
database which 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."
To enable it refer to enable windows registry section.
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HOW TO ENABLE
WINDOWS REGISTRY |