What is Windows Registry?
The Windows Registry is a built-in database in Microsoft Windows that stores settings and preferences for the operating system, apps, and hardware. It helps Windows know how to start, run, and behave on your computer.
In more detail
The Windows Registry is a central database that stores configuration settings for Windows, installed programs, and connected hardware. It contains information such as user preferences, file associations, startup behavior, and system options.
Windows uses the registry to decide how things should work each time the computer boots or an app opens. This is why changes to the registry can affect performance, appearance, and how software behaves.
For everyday users, the registry mostly works in the background. You usually do not need to edit it manually, but it matters because it helps Windows keep track of settings and keep your system running the way you expect.
Examples
- Remembering which app opens a .pdf file
- Saving desktop and system preference settings
- Storing programs that run when Windows starts
Need more help?
Run a free diagnostic scan to identify and fix issues automatically.
Download Quickfix AI