I was attempting to run a program off an external hard drive and the program needed an installation of some kind so i quickly installed it without thinking and it turns out it changed the boot drive to the external hard drive. i have attempted through the bios setting to change the doot to to where windows was installed, on an ssd but this simple showed errors. when pluging the external hard drive back in and booting the pc from that it shows a dell system recovery program. i am not sure what to do. should i run the dell system recovery or what im kinda lost