What is the bootTel.dat File and Why is it Needed?

The bootTel.dat file is a system file associated with the Windows operating system, typically found in directories such as C:\Windows\System32. This file often appears on devices running Windows 10 or later and is used to collect boot-related data, including diagnostic information. Below, we’ll explore what exactly this file does, why it might be useful, and in which cases it may be safe to delete or keep it.

What Does bootTel.dat Contain?

The bootTel.dat file contains telemetry data related to the system’s boot process and performance. This data may include information about boot time, hardware configuration, software errors, and other parameters affecting the system’s stability and performance. Microsoft uses this file to improve Windows stability, as the data collected can help identify errors and optimize the system for future updates.

Where Does bootTel.dat Come From?

This file is automatically created by the system, especially if system usage data collection (telemetry) is enabled. Telemetry is a built-in mechanism in Windows that helps Microsoft monitor device performance and stability. Even if you don’t see this file in the root directory, it may appear following certain system updates or after issues related to the boot process.

Can You Delete bootTel.dat?

Yes, you can delete the bootTel.dat file, but keep in mind that it doesn’t take up much space and poses no risk to the system. Deleting it won’t cause issues; however, it may reappear upon the next reboot, as the system will continue collecting telemetry data. To prevent its constant appearance, you can reduce telemetry settings in the Windows privacy options.