Your driver is not digatilly signed by microsoft which could cause a corrupt OS.
You can try to change your driver acceptation by :
1 : right click My Computer
2 : Choose hardware
3 : Driver signing
4 : Choose Ignore or Warn (I think actually it stands on block)
You can choose to put it as system default.
Klick on ok and reinstal your application/drivers.
It should be OK now.
Greets,
Willy - MCP/MCTS