CD/DVD-Burner is not working anymore (yellow exclamation mark in device manager). According to Microsoft this could occur e.g. after you remove a CD recording program or a DVD recording program, or after you remove a different program.
Summary:
Clearing the registry entry "UpperFilters" and "LowerFilters"
Resolution:
Follow these instructions for clearing the Upper/Lower Filters:
Click on Start --> Run --> and type in 'regedit' followed by the enter key
Expand the "HKEY_LOCAL_MACHINE" key (looks like a folder) by double clicking it (or clicking the "+" next to it.)
Expand the "SYSTEM" Key
Expand the "CurrentControlSet" Key
Expand the "Control" Key
Expand the "Class" Key
Please look for a key containing the following string of letter and numbers:{4D36E965-E325-11CE-BFC1-08002BE10318}
High light this key by left clicking once on it
On the right hand side you are looking for "UpperFilters" and "LowerFilters" under the "Name" column, once you find these please delete them by right clicking on them and choosing "delete"
Please exit the registry by clicking on the "X" in the top right hand corner of the screen
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