What tool can you use to increase the number of processors used during boot?

To increase the number of processors used during boot, you can modify the boot configuration settings in your operating system. For Windows, you can use the "msconfig" tool, where you can access the "Boot" tab and adjust the number of processors under "Advanced options." For Linux, you can modify the GRUB configuration file to set the maximum number of CPUs at boot time. Always ensure that your hardware supports the desired number of processors before making these changes.