Just download this driver extracted from the old corsair link and install in devices manager and your H100i V2 should work properly. In newer versions of corsair link, corsair replaced this old driver with their self-singed version and messed the driver up.
Corsair H100i V2 driver error code 52 unsigned fix
One response to “Corsair H100i V2 driver error code 52 unsigned fix”
Thank you so so so much!!!! You’ve saved my 5 straight days of headache with the H100i..