So i have tried,
reinstalling
verifying
updating nvidia drivers
reinstalling c++ 2010 version
deleting regedit files and reinstalling uplay and far cry 4.
This game worked perfectly fine months ago then i moved it over to my other disk and back now it doesnt work. i either suspect a far cry 4 update screwing it up, windows 10 update or something else...
ERRORS FROM DIFFERENT LAUNCHES TRYING TO START THE GAME:
[13864] 2019-06-01 20:47:00 [11876] ERROR GameProcessWatcher.cpp (210) Child process abnormal exit: 7848
[ 7640] 2019-06-01 20:51:38 [ 7300] ERROR GameProcessWatcher.cpp (210) Child process abnormal exit: 3144
[12184] 2019-06-01 20:53:03 [ 3704] ERROR GameProcessWatcher.cpp (210) Child process abnormal exit: 6780
[ 5764] 2019-06-01 20:55:38 [ 7508] ERROR GameProcessWatcher.cpp (210) Child process abnormal exit: 11744
[10592] 2019-06-01 21:04:50 [ 9788] ERROR GameProcessWatcher.cpp (210) Child process abnormal exit: 7832
[12488] 2019-06-01 21:08:24 [15576] ERROR GameProcessWatcher.cpp (210) Child process abnormal exit: 16144
[ 9384] 2019-06-01 21:18:58 [ 1888] ERROR GameProcessWatcher.cpp (210) Child process abnormal exit: 8820
[13244] 2019-06-01 21:25:08 [ 7640] ERROR GameProcessWatcher.cpp (210) Child process abnormal exit: 12472
[11180] 2019-06-01 21:25:22 [ 4160] ERROR GameProcessWatcher.cpp (210) Child process abnormal exit: 13652
[ 2460] 2019-06-01 21:30:17 [ 4720] ERROR GameProcessWatcher.cpp (210) Child process abnormal exit: 7448
[14688] 2019-06-01 21:30:27 [14904] ERROR GameProcessWatcher.cpp (210) Child process abnormal exit: 14840
[15260] 2019-06-01 21:32:37 [14600] ERROR GameProcessWatcher.cpp (210) Child process abnormal exit: 15356
[ 1020] 2019-06-01 21:41:37 [ 9072] ERROR GameProcessWatcher.cpp (210) Child process abnormal exit: 2056
[13660] 2019-06-01 21:42:25 [ 7280] ERROR GameProcessWatcher.cpp (210) Child process abnormal exit: 9324