How do I remove a virus from iPhone 16e that prevents powering off?

only way to install new software on a non jail broken iphone is apple app store

virus are apps too, you can't install software from websites or links or mails or sms's

what makes you think you have a virus?

of cause is people get access to your apple account they can do all sorts of things but it's not on the iphone

but if it happens then read

If you think your Apple Account has been compromised - Apple Support

Izzypeebs75 wrote:

I need help pls I have a virus

No. You don't. There are no viruses in the wild that can infect an iPhone that is not jailbroken.

Why don't you try describing your problem.