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The available active function keys during bootup (immed after) depends on the machine. Often keys used to trigger alternate boot and setup pages include F2,F8 and combinations of ctrl, alt, shift, F2,F8,F1.

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15y ago
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6y ago

What each function key does depends on what program you are using; that is, different programs are free to use the function keys for different things - both by themselves and in combination with some other keys. Some functions have become more or less standardized; for example, in a Windows environment, F1 means "help" in many programs, while Alt-F4 will usually close a program. Many other function keys can vary a lot, depending on the program you use.

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Q: What function keys do what when starting computer?
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