boot up

Verb

Meaning

(transitive) To start a computer using its bootstrap procedure
Synonyms: boot, (dated, transitive) deadstart

(intransitive, of a computer) To start, using its bootstrap procedure.
It takes a couple of minutes for the computer to boot up.

Source: en.wiktionary.org

keyboard reboot initialize log in computerize computerise log out ramp up

Boot up the Lake of Shadows strike and head to the first combat arena at Maverik Square. Source: Internet