if i reinstall windows, do i need to run EZSetup

[chlubb]

Wizard again? After trying once to install a new firmware and completely screwing this thing for a week, I am concerend about touching it at all since its work fine now. If I reinstall, do I need to run the EZSetup Wizard in order to be able to see the drive or map it so I can access the files and router login?

[Barnosch]

no.
because every stuff is saved on the router itself.

you just have to map your drive (for samba) if its installed, again.

Reinstalling has nothing to do with the OS u use. You can access your webconfig with every OS with a browser. If win or *nix doesent matter.