Mine RX 570/580 4GB rigs stop working this morning (cannot allocate big buffer for DAG).
Runing Claymore's Miner v12 on Windows 10 v1709
Driver Crimson ReLive Edition Beta for Blockchain
Other mining software works fine for me.
Read two posts up ^
Move to any 18.x.x driver version, test on your config the best driver that will give best hash performance
Compute mode on, using compute patcher
Hint: install the driver only, without the amd settings cause the wattman will give you headache