Windows 7: ALT + TAB Reverts to Windows XP Style

I think we have tried everything. I think the only two options left are either a clean install or just use the Windows - Tab combination. Your choice now unless someone finds something

Ok...
Try answering this Q and A

Is windows 7 on classic mode?

What happens When you press Windows+Tab

Whats Your Graphics Card

Legit Windows 7 or Taliban Edition (lol)

Latest Updates for Video Card

I think we already have answer to those questions.
I guided him to put on best appearance settings (so it's not classic mode now)
Already been asked abour win+tab (he hates it now)
win+tab 3d efffect is working so, it's probably not problem with his video Card.

Not sure about his Windows (but it's not that necessary)

Just clarifying, as questions were already asked.
And I bet Thread starter already fed up with it

I have exactly the same problem. It has been 2 years since the last post. What is the solution?

We've discovered that it is an issue with Windows itself. Therefore there is NO solution.

Maybe this would help you:
VistaSwitcher - Speed Up Windows Alt-Tab | Most Elegant And Powerful Task Switcher - NTWind Software