When you say reformatted. Do you really mean that or a reinstall of windows over the top of itself?
Most of the problems I've seen like this have been due to a kind of remaining bit of the parameters of some software being there, but windows or nvda getting confused what its doing. Oftn if it is only nvda which is the issue, you can weed out all the occurrences of nvda and install clean and start again. If other things are affected then stuff can get more complicated. So it might still be that the reason you cannot action the items you say is purely due to nvda not being in a good state. I assume this is the latest Windows 10? If so then try using narrator for making things work like anti virus and firewall, however I'd be a bit worried why, after a reinstall all of this was not on by default.
Brian

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