what is windows registry

windows registrywindows registry

A Windows Registry is one of the key components of any PC, developed for housing and retrieving all the various configuration data that your PC needs for running applications, and the system components for ensuring that each application and each hardware device works properly.

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The registry is normally OK until you start installing too much hardware and software on the system. Anytime a new software or hardware is installed, several new entries are created in the computer registry. Similarly, when a program is deleted or uninstalled from the computer, the majority of the entries previously created on the registry will be removed but not all.