Wiktionary
vb. 1 (context transitive English) To start a computer using its bootstrap procedure 2 (context intransitive of a computer English) To start, using its bootstrap procedure.
Usage examples of "boot up".
He stepped back and brought his boot up hard, smashing his heel into the juncture just beyond where he'd managed to crack the bead.
The lady ranger twisted and arched her body again, and before the bars could fall back into place, she got the toe of one boot up through the opening.
He rested casually, one boot up on the railing, and a hand on that knee holding a pair of binoculars.
I said casually and swung my boot up in a swift, hard kick at the near edge of the table.
I gave him no joy and sent him away with a flea in his ear and my boot up his rump.
Richard put one boot up on the platform, laid his arm across his knee, and leaned close to the Wise One.
My right foot had slipped off the rounded axle casing and I shifted backwards, swinging my boot up again, but everything was blacking out and the sound of the transports died to silence, and in the silence I heard Frome's voice, a long way off.