Given that information, it appears your antivirus program is broken at the moment
Relevent sections of hijack highlighted
R3 - Default URLSearchHook is missing
delete thisO16 - DPF: {4ED9DDF0-7479-4BBE-9335-5A1EDB1D8A21} -
http://bin.mcafee.co...72/mcinsctl.cabO16 - DPF: {BCC0FF27-31D9-4614-A68E-C18E1ADA4389} -
http://bin.mcafee.co...,16/mcgdmgr.cabold mcafee stuff deleteO20 - Winlogon Notify: nwprovau - C:\WINNT\SYSTEM32\nwprovau.dll
nwprovau.dll is the Client Service for NetWare Provider and Authentication Package DLL. It is used for connecting to netware servers/printers, etc. It could be contributing to your startup issues. I would suggest removing this if you are SURE you do not need it. I'll post how you do that in a few momentsO23 - Service: BitDefender Scan Server (bdss) - Unknown owner - C:\Program Files\Common Files\Softwin\BitDefender Scan Server\bdss.exe" /service (file missing)
O23 - Service: BitDefender Desktop Update Service (LIVESRV) - Unknown owner - C:\Program Files\Common Files\Softwin\BitDefender Update Service\livesrv.exe" /service (file missing)
O23 - Service: BitDefender Virus Shield (VSSERV) - Unknown owner - C:\Program Files\Softwin\BitDefender9\vsserv.exe" /service (file missing)
O23 - Service: BitDefender Communicator (XCOMM) - Unknown owner - C:\Program Files\Common Files\Softwin\BitDefender Communicator\xcommsvr.exe" /service (file missing)
something wrong with bitdefender here--you should reinstall it.