1. Please re-open HiJackThis and choose do a system scan only. Check the boxes next to ONLY the entries listed below(if present):
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = about:blank
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = about:blank
O2 - BHO: (no name) - {BCD747FB-3498-464D-8986-EF8551A5687B} - C:\WINDOWS\system32\byXqrpNd.dll (file missing)
O3 - Toolbar: (no name) - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - (no file)
O20 - Winlogon Notify: geeby - C:\WINDOWS\
2. Now close all windows other than HiJackThis, including browsers, so that nothing other than HijackThis is open, then click Fix Checked. A box will pop up asking you if you wish to fix the selected items. Please choose YES. Once it has fixed them, please exit/close HijackThis.
Reboot and post a new HijackThis log