boot up

noun

the process of starting a computer

L1503582 on Wikidata ↗

Wiktionary

verb

To start a computer using its bootstrap procedure.
To start, using its bootstrap procedure.
“It takes a couple of minutes for the computer to boot up.”
To start a computer program or a recording of a movie, show or song.
“Then you should boot up your word processor.”
To start up, to bootstrap (any process, especially a business).
“They believe they now have enough capital to boot up and stay alive until sales revenue begins.”