multiple infections / don't know where to begin

I have AVG and recently it found some high risk infections.

1. I have the IE popups that appear when I am using Mozilla Firefox. I go to the task list, and delete the "iexplore.exe" but they reappear every few minutes.

2. AVG found Trojan.Pakes.bvs

3. AVG found Adware.PurityScan

4. AVG found something called "ClickSpring" in my registry.

5. AVG found Hijacker.small.jf

I quarantined these items, but I don't think it got rid of them. Not sure what to do next. I can't afford to buy a program, so I am hoping to do this manually or download a few free removal programs.

 

Welcome to MajorGeeks.com!

Please follow the instructions in the below link and attach the requested logs when you finish these instructions.

Read & RUN ME FIRST Before Asking for Support

 

Thank you. I am still having problems, and I have attached the three logs.