You can reinstall Windows without removing your data by using the "Reset this PC" feature in Windows. This will allow you to keep your personal files and settings while reinstalling the operating system. To access this feature, go to Settings > Update & Security > Recovery and select "Get started" under the "Reset this PC" section. Follow the prompts to reinstall Windows while keeping your data intact. However, it's always a good idea to back up your important files before performing any major system changes.