BleepingComputer.com: No Exe files will run, Rootkit found & deleted

I have a Windows 7 pc that refuses to run any .exe files and will not allow any programs to be installed.
I managed to delete some trojans after running a live linux boot disc, plus GMER which suggested that a Rootkit was found, but the log for that was corrupted.
I placed the infected drive in another pc and ran Malwarebytes which detected a further 30 odd files, and also tried Kaspersky's TDSSKiller which reported two suspicious files, one to do with a Fraps installer, the other I can't remember (Doh!). I also ran the Microsoft Safety Scanner and ESET online virus scanner both of which scanned over 500000 files and reported nothing suspicious

I then placed the drive back in to the pc, it boots fine but still won't run or install any programs. I have tried renaming files and changing file extensions. There are no error messages, when I double click a shortcut nothing at all happens, tried in safe mode and as administrator.
I have also attempted to create a new user, but again there is no response when clicking create a new user.
I can't get Hijackthis to run either.

Any ideas as to what I could try next, before I do a format and long winded re-install?

Many thanks

PS the owner of this pc is a Minecraft and COD freak and is forever downloading extra maps and extensions and doesn't seem to worry about where they come from..

This post has been edited by newgrass: 04 October 2011 - 02:21 PM

With the information you have provided I believe you will need help from the malware removal team.
Please make sure that you read the information about getting started first.
Then start a new thread HERE and include or required logs.
Including a link to this thread will be helpful.

Good luck and be patient. Help is on the way!

In your topic here: http://www.bleepingcomputer.com/forums/topic422218.html can you post what TDSSKiller and Malware found? They may assist your malware helper identify the cause. Please edit your first post in your topic.

Hello,

Now that you have posted a log here: http://www.bleepingcomputer.com/forums/topic422218.html you should NOT make further changes to your computer (install/uninstall programs, use special fix tools, delete files, edit the registry, etc) unless advised by a MRT Team member, nor should you ask for help elsewhere. Doing so can result in system changes which may not show in the log you already posted. Further, any modifications you make on your own may cause confusion for the helper assisting you and could complicate the malware removal process which would extend the time it takes to clean your computer.

From this point on the MRT Team should be the only members that you take advice from, until they have verified your log as clean.

Please be patient. It may take a while to get a response because the MRT Team members are EXTREMELY busy working logs posted before yours. They are volunteers who will help you out as soon as possible. Once you have made your post and are waiting, please DO NOT make another reply until it has been responded to by a member of the MRT Team. Generally the staff checks the forum for postings that have 0 replies as this makes it easier for them to identify those who have not been helped. If you post another response there will be 1 reply. A team member, looking for a new log to work may assume another MRT Team member is already assisting you and not open the thread to respond.

Please be patient. It may take several days to get a response but your log will be reviewed and answered as soon as possible. I advise checking your topic once a day for responses as the e-mail notification system is unreliable.

If HelpBot replies to your topic, PLEASE follow Step One so it will report your topic to the team members.

To avoid confusion, I am closing this topic. Good luck with your log.

Orange Blossom