Tech Support Forum - View Single Post - HP pavillion dv4000 laptop cannot locate my cd/dvd drive

**bhahar84** · 03-02-2008, 10:21 AM

Hi volcom3341!!

Try to go to the Regedit:

Start > Run > Regedit

Go to this Registry Key:

HKEY_LOCAL_MACHINE
SYSTEM
CurrentControlSet
Control
Class
4D36E965-E325-11CE-BFC1-08002BE10318

Delete all the UpperFilters and LowerFilters on the right panel after you click on the 4D36E965-E325-11CE-BFC1-08002BE10318

Warning: Do not delete the Key or the Multi-String Values. Delete only the LowerFilters and UpperFilters. There might be a LowerFilter.bak or UpperFilter.bak, don't ever delete this key.

Now, exit the Registry and restart your computer

And, your drive should be appeared again

03-02-2008, 10:21 AM	#5 (permalink)
bhahar84 TSF Enthusiast Join Date: Jan 2008 Location: Malaysia Posts: 1,386 OS: Windows XP SP2, Vista Ultimate My System	Re: HP pavillion dv4000 laptop cannot locate my cd/dvd drive Hi volcom3341!! Try to go to the Regedit: Start > Run > Regedit Go to this Registry Key: HKEY_LOCAL_MACHINE SYSTEM CurrentControlSet Control Class 4D36E965-E325-11CE-BFC1-08002BE10318 Delete all the UpperFilters and LowerFilters on the right panel after you click on the 4D36E965-E325-11CE-BFC1-08002BE10318 *Warning: Do not delete the Key or the Multi-String Values. Delete only the LowerFilters* and UpperFilters. There might be a LowerFilter.bak or UpperFilter.bak, don't ever delete this key.** Now, exit the Registry and restart your computer And, your drive should be appeared again __________________ .:CPU-Z::Power Supply::Recuva::Unlocker::SensorsView::PSU Calculator::Everest:.[/center]