Windows 7 - Xbox controller & Guitar Hero controller

I can't install the drivers for these controllers. I first plugged them in and both came up with the "downloading driver" window. But both stopped around 35% and reported that they had failed.
Using the device manager I tried to further prompt the download of these drivers, but soon after it says it is searching my system freezes and I have to hard reset. This is repeatable ad infinitum.

Funnily enough, this repeatable freeze happens with utorrent too. Utorrent runs for a few minutes at most, until everything hangs. Any ideas?

System spec:
Windows 7 64-bit build 7000 clean install
Core2 Quad Q6600 (stock speed) 35c idle
Maximus Extreme mobo X38 chipset
4 x OCZ 12800 DDR3 1GB
Powercolour HD4870 512MB graphics
WD Caviar Black 250GB main HDD
3 x subsiduary HDDs
580W Hiper Modular PSU

Just go to- www.microsoft.com/hardware/windows7/support.mspx

You can download the drivers directly then install them that way.

It works on x64 I too use Windows 7 x64 and it works for me.

I think I may have found a common problem inherent in these problems... My Pluscom wireless PCI LAN adapter (with Ralink RT2561 chipset) doesn't seem to like 64bit. I've put Vista 64 on my machine to test it out and it is still replicating the same problems. So it's not Windows 7!

It'll accept browsing connections to shared files from various computers but hangs as soon as the remote computer tries to open a file.