I have a Toshiba NB-100 notebook that i hookked my Nexxtech external usb dvd drive to.  the notebook will not recognize the drive.  It is showing in the device manager but it has a yellow exclamation mark on it.  When I click to update the driver it says it cant' find a better driver than the one I have.  I tried to BOOT from the drive to get to Windows recovery console.  It will boot and go through the first process of loading windows but when it gets to the point where it says Windows starting up it goes to the Blue Screen of Death with the error CODE Stop OXOOOOOO7B (OXF7A88524, OXCOOOOO34,OXOOOOOOOO, OXOOOOOOOO).  Why won't it recognize the drive and why can't I go through the boot process with the Windows disk I would like to re install windows at some point.  Any help would be appreciated.

Thank youWhat is on this external drive ? ?
When you say you are trying to boot to it what does that mean ? ?
XP and later will not boot to an external drive without brute force applied...

Did you recieve a Driver CD with this external ? ?
Was it unplugged prematurely without using the "Safely remove device" icon that sits in the system tray ? Windows XP Home Edition is on the external drive, and I mean I booted from the cd in the drive which it will until it gets to the point where it says starting windows. And yes I did remove the drive without using the safely remove hardware I did not even know it was there.  I read the user guide and it said nothing about that it just said to unplug the CABLES. Will that totally mess things up or can it be fixed?Normally it results in a total loss of data...
How did you install XP to that drive ? ?
Have you tried hooking it up to a desktop machine and see how Disk Management REPORTS it ? ?

To get to Disk Management right clik My Computer...select Manage...then disk management.
Then right clik the drive and select Properties and report back with your findings.....It's an external dvd drive so XP is on a disk in the drive.  I did hook it up to my desktop and  hardware management reports it and it works just fine.  OK i apologise...i completely misunderstood...
It's a DVD drive.
I'd TRY another XP CD 1st...Also, check in the bios to see if there is an option to recognize usb on boot and if so, that it is enabled.I did try another disk and the same result,  Toshiba doesn't even list that model on their support page.  Only NB-105's
http://www.csd.toshiba.com/cgi-bin/tais/support/jsp/home.jsp

Toshiba Forums:  http://laptopforums.toshiba.com/t5/Drivers-and-Utilities/Toshiba-NB100-Drivers/m-p/44609

It is listed here:  http://www.notebook-driver.com/toshiba/toshiba-nb100-netbook-windows-xp-drivers/
None of the links seem to work.

Because it's a Toshiba netbook, it probably needs a special driver for the external USB DVD drive.