https://www.androidpolice.com/2020/03/31/how-to-turn-your-old-slow-laptop-into-a-sleek-chromebook/
Dell Tap F12 when the Dell logo is displayed. HP Tap F9 when the HP logo is displayed. Lenovo Tap F12 when the Lenovo logo is displayed. Apple Hold Option (next to the ⌘ key) when the computer first turns on. Toshiba Tap F12 or F2 when the Toshiba logo appears. Acer Tap F12 as the Acer logo appears. Other Try tapping Esc, F1-12, or Enter during bootup.
#bootfromcd
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