10.9K Posts

October 26th, 2010 15:00

Look down the page and find your operating system and follow the instructions for removing the Upperfilters and Lowerfilters manually.

10.9K Posts

October 26th, 2010 13:00

Try this Microsoft Article .........

http://support.microsoft.com/kb/982116

3 Posts

October 26th, 2010 15:00

I just ran it and it said it couldn't fix it because it isn't "working properly"

3 Posts

October 26th, 2010 16:00

So I didn't have LowerFilters so the information didn't work.

10.9K Posts

October 26th, 2010 19:00

Remove the Upperfilter (sometimes the Lowerfilter is missing) then reboot the system.

1 Message

May 8th, 2012 01:00

thanks skybird.    i too had troubles with my inspiron,

suddenly the dvd did not show up in MY COMPUTER

and there was a little yellow exclamation mark in the DEVICE MANAGER.

I ran regedit and removed both upper and lower filters, now

everything is good again!!!       Appreciated very much.

1 Message

January 17th, 2018 09:00

what are the upper and lower filters?

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