Yesterday I put Windows 2000 driver CD into my CD-Rom drive and suddenly my laptop doesn't "see" that drive anymore.
When I go to system/hardware, it's telling me that I'm having a Device Manager Error Code 19 and that my registry might be corrupted. I found this information that may possibly fix this problem for me, BUT I have no idea what an upperfilter or lowerfilter is. Can anyone help me shed some light on this??
Remove the Upperfilters and Lowerfilters values completely from the following registry key: