Are you new to Windows customization?
Follow the steps given on this post page and I always recommend Creating a Restore Point before starting the customization. If you have any other doubts comment below.
7TSP is an icon pack for Windows 10, and 11 that can be used to customize the appearance of the icons on the operating system. The 7TSP icons are a collection of high-quality icons that are designed to replace the default icons on a Windows operating system.