Problem after upgrading to Window 7 Ultimate

Dear All,

Recently I have upgraded from Window 7 basic to Ultimate. Now Bluetooth is not working. I have checked Bluetooth driver and all are up-to-date. Also I am feeling video quality is worse compare to previous. Again all graphic card drivers are latest. Please guide me to solve those problems.
Notebook details –
Aspire 7752G
I5-2450M 2.5 GHz
NVIDIA GeForce 610M with 1 GB Dedicated VRAM & Intel HD Graphics 3000
4 GB DDR3

Thanks.