Question about Dell OptiPlex GX620 PC Desktop

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The cdrw/dvd drive has dissappeared after an update from microsoft. after trying to reinstall the drivers it still isnt showing up in my computer.could the upper and lower filters in the registry be corrupt? How do i fix this issue?

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Hi,
Please follow the steps below to resolve the issue if you are not comfortable doing this then just take help from any friend or neighbour if this did not resolve the issue then replace the drive asap because it is a hardware issue.


1. Press Windows Key+R and type regedit in the text box and click OK

2. Click "File" in the menu.

3. Click "Export" from the drop-down menu.

4. Click the down arrow beside "Save In" and select Local Disk

(C.

5. Type Backup.reg in the File Name field.

6. Click Save.

=== Deleting UpperFilter and LowerFilter Registry Keys ===

1. Click Start and click Run.

2. In the Open box, type regedit and click OK.

3. Click the plus (+) sign beside HKEY_LOCAL_MACHINE.

4. Click the plus (+) sign beside System.

5. Click the plus (+) sign beside Current Control Set.

6. Click the plus (+) sign beside Control.

7. Click the plus (+) sign beside Class.

8. Locate the {4d36e965-e325-11ce-bfc1-08002be10318} key

and click it.

9. On the File menu, click Export.

10. In the File name box, type savedkey and click Save. It is

better
to save the "savedkey" to the desktop.

11. Click the REG_MULTI_SZ data type UpperFilters (found in

right
window pane) and then click Delete on the Edit menu.

12. When you are prompted to confirm the deletion, click Yes.

NOTE: If this data type is missing, continue to the next
method.

13. Click the REG_MULTI_SZ data type LowerFilters (found in

right
window pane) and click Delete on the Edit menu.

14. When you are prompted to confirm the deletion, click Yes.

15. Quit the Registry Editor and restart the computer.


CD/DVD drivers reinstall:

Press the Windows Key + R and type devmgmt.msc and press enter.

Device manager will open up.

Click the + sign beside DVD/CD Drives.

Right Click on the device listed under it and select Uninstall

Restart the PC and let the driver install automatically.

Check the issue once again.

Posted on Jul 30, 2010

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