Welcome to Lockergnome.
Go to
http://www.bleepingcomputer.com/combofix/how-to-use-combofix and follow the instructions on how to install the Recovery Console and run ComboFix. Go through all the steps until posting the log part. Post the combofix log here.
Download HijackThis at
http://www.greyknight17.com/spy/HijackThis.exe Create a folder at C:\HJT and move HijackThis.exe there. Double-click on the program to run it.
1. If it gives you an intro screen, just choose
Do a system scan and save a logfile.
2. If you don't get the intro screen, just hit
Scan and then click on
Save log.
3. Post the
hijackthis.log file here. Do not fix anything in HijackThis since they may be harmless.