I just did a fresh install of Win7 on my RF511 from the Samsung recovery CD and then from their web site got the minimal drivers to get all the hardware working.
http://www.samsung.com/us/support/owners/product/NP-RF511-S02US
1. Chipset (Driver) ver.9.2.0.1019
2. USB (Driver) ver.2.0.30.0
3. VGA(Graphics),INTEL (Driver) ver.8.15.10.2622
4. VGA(Graphics),NVIDIA (Driver) ver.8.17.12.6672
5. Lan (Driver) ver.7.45.516.2011
6. Wireless LAN,BROADCOM (Driver) ver.5.100.82.95
7. Easy...
Disabling Bluetooth/Wi-Fi in fresh Win7 install
http://www.samsung.com/us/support/owners/product/NP-RF511-S02US
1. Chipset (Driver) ver.9.2.0.1019
2. USB (Driver) ver.2.0.30.0
3. VGA(Graphics),INTEL (Driver) ver.8.15.10.2622
4. VGA(Graphics),NVIDIA (Driver) ver.8.17.12.6672
5. Lan (Driver) ver.7.45.516.2011
6. Wireless LAN,BROADCOM (Driver) ver.5.100.82.95
7. Easy...
Disabling Bluetooth/Wi-Fi in fresh Win7 install