Lastest Scanning Tools

I've been out of the loop for a bit regarding scanning Windows 7 boxes for viruses, maleware, rootkits....

What are the latest defacto tools out there? Malewarebytes is one of my favorites. I need to run a scan against a PC and am looking for additional Free tools :)

Thanks!

Microsoft Security Essentials - Microsoft Windows

Free Online Virus Scanner | ESET

Windows Defender Offline

These are my first choices.
You say you already use Malwarebytes, Good choice.

I use MSE and MAM Pro active on my computers.

Thanks for the suggestions. I guess I should of been a bit more specific. I am looking for some portable tools with a good reputation for effectiveness. I'd like to build a portable USB stick where I can launch them on a potentially infected machine.

Thanks!

Thanks for the input! I will check these out!

Other tools you can add to your arsenal:

Norton Power Eraser

NOTE: Because Norton Power Eraser uses aggressive methods to detect threats, there is a risk that it can select some legitimate programs for removal. You should use this tool very carefully. If you accidently remove a legitimate program, you can run Norton Power Eraser to review past repair sessions and undo them.

TDSSKiller - a Anti-rootkit utility

SuperAntiSpyware Portable Scanner