Well, don't use windows but if you can bypass Bitlocker to modify a kernel extension it seems like you could just bypass Bitlocker to install a keylogger / what

Well, don't use windows but if you can bypass Bitlocker to modify a kernel extension it seems like you could just bypass Bitlocker to install a keylogger / whatever? With the utility of in a shared computer environment (say school library) you can get the administrative password with enough time.