Ok, let's do some cleanup.

Download this program and run it Uninstall ComboFix .It will remove ComboFix for you.
*******************************
Click Start> Computer> right click the C Drive and choose Properties> enter
Click Disk Cleanup from there.



Click OK on the Disk Cleanup Screen.
Click Yes on the Confirmation screen.



This runs the Disk Cleanup UTILITY along with other selections if you have chosen any. (if you had a lot System Restore points, you will see a significant change in the free space in C drive)
********************************
Go to Microsoft Windows Update and get all critical UPDATES.

----------

I suggest using WOT - Web of Trust. WOT is a free Internet security addon for your browser. It will KEEP you safe from online scams, identity theft, spyware, spam, viruses and unreliable shopping sites. WOT warns you before you interact with a risky website. It's easy and it's free.

SpywareBlaster- Secure your Internet Explorer to make it harder for ActiveX programs to run on your computer. Also stop certain COOKIES from being added to your computer when running Mozilla based browsers like Firefox.
* Using SpywareBlaster to protect your computer from Spyware and Malware
* If you don't KNOW what ActiveX controls are, see here

Check out Keeping Yourself Safe On The Web for tips and free tools to help keep you safe in the future.

Also see Slow Computer? It may not be Malware for free cleaning/maintenance tools to help keep your computer running smoothly.
Safe Surfing!Thank you so much for all your help. I am extremely grateful, you have a fantastic service here.You're welcome. I will lock this thread. If you need it re-opened, please send me a pm.