So, i disconnected the risers for 7 out of 8 cards which allowed windows to update it self without the need of fresh reinstall, after it came back online i had to plug in the extra cards in one by one (add one, let it install the drivers, shut down, add another and so on).

Everything is working now 

The "Meltdown" security patch did lower the mining performance by 1.23% on Intel G4400 so not too bad.