My Toshiba has problems. That said, every now and then it can’t find it’s own DVD drive. No power no detection, nothing. I’m suspecting iTunes is the culprit but who knows. In any case I found out that there’s a simple solution posted around the web but I found it in a forum here.
Steps
1) Open regedit.exe (Start menu > run, type regedit, and the exe should be listed)
2) Locate the following reg file in the following path:
HKEY_LOCAL_MACHINE
SYSTEM
CurrentControlSet
Control
Class
{4D36E965-E325-11CE-BFC1-08002BE10318}3) Delete the values for the Upper and Lower filters.
4) Restart