Here are some free bootable USB drive makers for Windows 11/10 to create a bootable drive from an ISO file. Create a multiboot USB!

This will wipe the contents of the USB drive, so be sure to back up any data you want to keep first. Here's how to use the Media Creation Tool to create a bootable USB for installing Windows 11: ...

7. Create partition on USB flash drive We now need to create the partition from which your PC will boot. Type create partition primary at the DISKPART prompt, which will create the partition.

You can create a portable PC on a USB stick and run it from anywhere. Here's a step-by-step guide on how to do it with Linux.