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Open "regedit"
Remove the Upperfilters and Lowerfilters values by:
a) Expand the "HKEY_LOCAL_MACHINE" key (looks like a folder) by double clicking it.
b) Expand the "SYSTEM" Key
c) Expand the "CurrentControlSet" Key
d) Expand the "Control" Key
e) Expand the "Class" Key
f) Please look for a key containing the following string of letter and numbers: {4D36E965-E325-11CE-BFC1-08002BE10318}.
g) High light this key by left clicking once on it
h) On the right hand side you are looking for "Upperfilters" and "Lowerfilters", once you find these please delete them by high lighting (left clicking on them once) and then right clicking on them and choosing "delete"
5) Restart your computer.
6) Your CD-ROM should be back.
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