Welcome and hi! Since you have done a rollback of the Driver in question,i will suggest the following:
1)Have you scanned with Superantispyware(portable or free) and Malwarebytes antimalware? If not pl. do.Which A-V have you used?
2) Try the "Last configuration that worked" OR revert back to the system restore point which must have been created by the System just b'fore you installed the new driver OR more importantly any new software or program that you installed prior to the new driver install.
3) Re-install the older driver that worked as suggested by Britton30 and Seavixen
. NOW HERE'S SOMETHING THAT CAN HELP YOU(very sorry for the bold type, no offence-it was only for emphasis).
4)A-- Select RPC service in msconfig
Start-> Run->msconfig->services tab->enable all Microsoft services
B)Back Up registry back
Click on File-> Export->Select somewhere where you can find it like My Documents->Click Save
c) . Click+ HKey_Local_Machine -> Click+ System-> Click+ CurrentControlSet->Click+ Services-> Click on RpcSs folder-> Right click on Start in the right pane-> Select modify-> change value to 2-> Click ok-> Exit Registry and restart you computer
Regards and best wishes,