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When troubleshooting computer problems or modifying settings, it may be necessary to add a new key value to the Windows registry. Follow the steps below for help on how to add a Windows registry key. Before editing or changing anything in the Microsoft Windows registry, we recommend you back up the registry. We also highly recommend anyone new to the registry become familiar with all the Windows registry basics. For help with opening the registry, see: How do I open and edit the Windows registry? In the Windows Registry Editor, move to the registry key you want to edit.
Product and service reviews are conducted independently by our editorial team, but we sometimes make money when you click on links. Learn more. Windows Registry is one of the key components of the Windows operating system. This hierarchical database contains windows settings, application settings, device driver info and user passwords. When an application is installed, some part of the software is stored in the Registry file, i.