After you post the above logs please go to Microsoft's website =>
http://support.microsoft.com/kb/310994
Select the download that's appropriate for your Operating System
Download the file & save it as its originally named, next to ComboFix.exe.
Now close all open windows and programs, then drag the setup package onto ComboFix.exe and drop it. Follow the prompts to start ComboFix and when prompted, agree to the End-User License Agreement to install the Microsoft Recovery Console. When complete, a log named CF_RC.txt will open. Please post the contents of that log.
Please do not reboot your machine until we have reviewed the log.