My laptop d900t comes with a 7in1 memory card reader 66% of the memory cards
i utilize do not work with it.

I never had the issue wiht xp. But did with vista. I thought the pins were
bent because once in a blue moon the SD meory card would read okay.

Then went to try out the 6801 build windows 7. Memory cards alll worked
flawless any size of SD perfectly fine. That went great for a few months

Now back to vista. Same memory card issue. When i place the card into the
computer it's like it hults the whole pc freezes everything in "computer"
"my computer" screen for a bit. As soon as i pull the card out everything is
cool again.

Can someone give me whatever driver they use for windows 7 to use for vista?

I never install drivers for the 7in1 memory card reader to work. I just use
the factory drivers that windows supplies. Generic is what's specified in
device manager.