Creating a USB recovery drive can be a time-consuming task—around two hours based on my experience, although the speed of your computer and USB drive could affect this duration. You’ll receive a notification on the screen when the process is complete.
When it’s time to use your recovery USB drive, connect it to an available port on your PC and boot from it. The exact method for this may differ depending on the computer model and manufacturer, but you should find detailed steps in the documentation supplied with your device or online. Generally, you will need to press a specific key (usually Esc, F2, or Delete) as the computer powers on, which will interrupt the standard boot sequence and prompt you to choose which disk to start from. At this juncture, you can select the USB drive connected to your system.