1) Windows 10 April (64bit);
2) AMD Radeon 270x (4GB);
2) Driver Problems: Adrenalin Edition 18.5.1 + Adrenalin Edition 18.6.1 Optional = !!!BLACK SCREEN!!!
3) The default driver from Windows Updape AMD 2017.09 No problem with black screen; The problem you have, decide please.
4) Adrenalin Edition 18.5.1 + Adrenalin Edition 18.6.1 Optional (Windows 7 SP1 64bit no problem.)