USB Scrub
Nexcopy, one of the leading manufacturers of USB copiers, is releasing USB Scrub as freeware today. This tiny package is designed to remove the excess registry entry that flash drives leave behind in Windows. Technically every piece of hardware you attach to your computer creates extra registry entries in windows. The makers of USB Scrub show that 260 registry entries get made every time a flash drive is connected. These entries slow down the process of inserting a USB drive into your computer. In Nexcopy's tests an overused system's accessibility lag went from 45 seconds to 15 seconds. That's the time it takes to go from plugging in a drive and then finally being able to use it.
USB Scrub will go through and clean out all those extra entries. Once you've cleaned out all the superfluous entries flash drive enumeration could be vastly improved. Currently only available for Windows XP but Vista and Windows 7 support are destined to arrive shortly. (Updated: Windows 7 compatibility is added to the latest version.) [Требует .NET] USB Scrub is completely free of adware and is nag free.
http://www.nexcopy.com/downloads/USBScrub.zip