Device manager suddenly scanning for new devices constantly

Last night, device manager started scanning for new devices constantly on a random time interval. I looked at all the error logs available but there was nothing reported (no hardware error, no disconnect, no application error, etc.). No device appears in error and every time DM tries to update, the PC freezes. This is getting very annoying, especially trying to play games.

I'm including the file MSINFO32.zip hoping someone can find what I'm missing and give me a hint as to what is happening. BTW, I'm running:

Win 7 Pro 64 bit on an AMD Phenom II x6 Black Edition platform.

It was the STUPID USB MOUSE!!

I was on the PC yesterday and DM was making the usual noises. Then, using hand-eye coordination, I noticed that every time the arrow pointer moved, DM would chime in. I moved the mouse really, really fast back and forth and DM went into a frenzy.

I replaced my mouse with my wife's mouse and DM quieted down right away. Funny, no hardware errors, or any other errors for that matter.

So, the mouse was the problem!!

I had the same problem of 'scan new hardware'/plug and play beep every few minutes, then every few seconds. After replacing the mouse to a different mouse I've found out that the problem is even getting worst, but on the same time I've checked the Keyboard Lamp which one of them was turning on and off every few seconds. After changing the Keyboard the problem has stop immediately.

Bottom line: try to change your Mouse/Keyboard (or other usb devices), probably your issue will solve out.