In certain applications like Procore Sync, you will be referred to click the Procore icon in your system tray. The system tray on your computer houses icons for currently running applications and functions on your computer including Procore applications like Procore Sync.
Windows computers have a few different locations for the system tray depending on your operating system. For example, on a Microsoft Surface running Windows 10, your system tray will appear on the right. Typically, your system tray will appear next to your battery life indicator icon on your computer.