The phrase "actually turned off" is correct and usable in written English.
It can be used to indicate that something has been deactivated or is not currently in operation, often in a context where there may have been confusion or doubt about its status.
Example: "I thought the device was still running, but it was actually turned off."
Alternatives: "truly deactivated" or "genuinely switched off".
Full disk encryption will only protect you if your computer is actually turned off, or logged out, though.
During that sit-in, as Politico reported — and Ryan's office felt compelled to point out — House Democrats actually turned off the lights in the chamber, too.
The outside world – and definitely not, whatever our critics suggest, only BBC apparatchiks – is simply not turned on enough or, worse still, is actually turned off by racing.
Women may find gratification for living this lifestyle in the short term, but in the long run they will have to face the reality — just as Carrie did — that most men are actually turned off by that type of lifestyle.
How did it go from being a must-see show for pretty much 12 years, to being such a pale imitation of itself that last week I actually turned off two-thirds of the way through due to exasperation?
James E. Youniss, a research professor of psychology at the Catholic University of America, said an unpublished study of New York students discovered that they were actually turned off to community service when they were told they were going to help people and ended up doing menial jobs that seemed unrelated.
And, moreover, is he willing to actually turn off David because he agrees with Rosa?
Eteplirsen actually turns off just one part of the dystrophin gene, known as exon 51, which contains a mutation that in some patients stops production of dystrophin.
That's because of all the objects in the home, like cable boxes and cable televisions and various Internet-connected devices, that never actually turn off.
"Our research discovered that astrocytes that are triggered by injury actually turn off novel neuroprotective signals that prevent optic nerve damage," explained study senior author John Flanagan, OD, PhD, professor and dean of optometry at UC Berkeley, in a recent news release.
Christopher Waters, the owner of the Nomad Café in Oakland, regularly hosts live jazz and poetry readings, and actually turns off the Wi-Fi router at those times so that people mingle more.
