You need to take ownership then apply your own permissions to the file… there are heaps of ways of doing this, sorry I wont list any here because its scary business 😯
I dont think it would *slow down* the PC, but whenever you modify a SYSTEM DLL there is always a cause for convern on system stability and/or security. Hence why I said I would try and look at the official authui.dll file, reverse engineer it a lil bit, and see if i can do anything with it then make a patch tool rather than canibalizing the Windows NT 6 family of OS’s haha! 😀
