What is startup interrupt menu?

The startup interrupt menu is an option available on some computers that allows the user to interrupt the normal startup sequence and access a special menu. This menu typically contains various troubleshooting and diagnostic tools that can be used to diagnose and fix issues with the computer's hardware and software. Some common options found in the startup interrupt menu may include options to boot into safe mode, use system restore, run diagnostics on the hard drive or other hardware components, and access advanced startup options. The exact options available in the startup interrupt menu may vary depending on the brand and model of the computer.