How do you remove Trojan startpage gy from c disk windows olehelpexe?

1. Download and run firefox to protect your computer from future spyware attacks and pop ups which are coming in through internet explorer (Trojan downloaders, win32 ).Browser attacks aren't easy to spot because they piggyback on legitimate traffic that doesn't exhibit many obvious warning signs . 2. Run the vundo and combo fix 3. Run Malwarebytes Anti-Malware

4. Run the anti spyware remove programs spybot

5. Run a complete scan with free curing utility Dr.Web CureIt!