Hy I have already 15 rig some work with T-rex 8.09 , some 9.01 no issue ,I try 9.02 Cuda 10 , always the miner scrool to down very fast (t-rex.exe is not recognized as an internal command or external command, ) repetitively
also some rigs start to behave like this ,for no reason ,few day ago was working
my system manly gtx 1060 , 3 gb window 10 nividia driver 417. 71
Sounds like Windows Defender deleted t-rex.exe. Please check if it's still there.