Windows 7 - virus

I recommend reinstalling MBAM and leaving it installed for the time being. Make sure it is up to date and run the full scan. After deleting everything that comes up, restart the computer and run a full scan again. If you continue to have problems, open Run, type in msconfig. Select diagnostic starup and restart then computer. Then run a full scan with MBAM and Hitman Pro.

I have a question about the third image in your previous post. Is that to show us what kind of pop-up you are recieving or something you tried to run? Either way, the link below will take you to page descriping how to remove Windows Security Alert manually. You may have to do so in safe mode.

How to Remove Windows Security Alert (Removal Instructions) | Faster, PC! Clean! Clean!

EDIT: +1 on the reformat suggestion, if you are able to do so.

Careful with the ComboFix solution
That warning is there for a reason! Then again it might get you to a point where you have to wipe the Disk(s) and start fresh (as you should in cases like your friends)
Virus removal is no substitute for adequate protection measures. You can never be 100% sure that you got it all.

-DG

Read this What is Trojan Hiloti. Encyclopedia. Panda Security
Your friend's computer is quite compromised. They have more than one infection.

yes petey thats correct thats whats happining in the third image that pop up tells him hes got a virus and tells him to scan computer with it. i gave up helping him cos after i uninstalled mlb i cant install it i spent a half day trying to help him. i noticed he had updates turned off hes never updtaed his pc anyway i showed him dis fourm i told him to join up nd take it from there his on his own now but thanks alot for all ur help guys.

Just remember, you can lead a horse to water, but that don't make it a duck.. Some people have to learn the hard way!