Vista Tutorial - Device driver removal process

Hello all,

I would like someone to please link me the complete process from start to finish for removing a 'unknown device' using vista home prem, from start to finish so i can remove all the entries in the regedit + cache files + start up blah in the windows world today.

Im a network engineer by trade, and i focused on DSB and Unbuntoo so my XP/vista is seriously lacking besides AD and netbios.

I have broken my device drivers for a orbicam built into a acer 5100. Its appearing as an 'unknown device'. I have got psexec to delete keys in regedit. And also have the admin account running + for all hidden devices showed in device manager.

Simply if i can clear out completely a USB device in vista i can run the reinstall prog for my webcam, and get it working again, (i broke it using yahoo and switching ports, i know, im a n00b) if some registry/file master for vista could point me in the right direction that would be awesome.

Fyi, i have a case of the cbfs, so please dont tell me to run system restore as its switched off as im not running an AV, (i know i broke it) and i dont have a backup (silly me) but ive put alota time into this build.

Due to XP ability to rebuild drivers dynamically, there must be a method in vista if someone knows it.

Ive microsoft.com general help files, but as im outa the loop due to networking, im only getting nab pages for troubleshooting.

Link me some proper techniques please, if possible in vista home prem.

TY.