Windows vista USB problems

Probably won't help. Simple fact is, USB ports aren't that durable. They go bad all the time, and while they don't usually all go bad at once, it's not out of the question.

Installing Windows 7 RC will likely not do a thing to resolve this, as it's likely a hardware issue. The only thing that will fix it is a motherboard replacement.

1. "update the usb main driver in the device mangier"

Funny. I call it the device mangler. But that has yet to work since 1995 so do the motherboard driver updates the old fashioned way.

But first.

2. Try the rear USB ports that are on the motherboard.

There is a possibility that it is the USB ports being damaged or worn out. Check the ports to see if the metal contact leads have been worn down or off, or if they are bent. Also if the plastic spacer or the grounding shield becomes damaged, that will affect getting a secure fit, thereby possibly causing the problem with the "device added" and then "device removed" at the same time. If it is a software issue, you could probably get a bit more detailed help over at the official Windows Vista Support Forum located here http://tinyurl.com/d5r9v3 . They are usually pretty quick to anser and have good info provided you give them all the information they need to answer the question.