Possible fix for No Webcam

try this it sometimes works. 1. Start Registry Editor (Regedit.exe). START > RUN > (Type) REGEDIT (and hit ENTER) 2. Locate the UpperFilters and LowerFilters value under the following key in the registry HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{6BDD1FC6-810F-11D0-BEC708002BE2092F} Write down the upper & lower filter valuse. Delete the UpperFilters and LowerFilters value (it's safe, and if could be restored later on if you have written it down, so don't worry)

This is a common error caused by a corrupt Registry entry.

Try this.

Start Registry Editor (Start, Run and type in regedit then click O.K)

Locate the UpperFilters value under the following key in the registry:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro l\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}

On the Edit menu, click Delete, and then click OK.

Locate the LowerFilters value under the same key in the registry:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro l\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}

On the Edit menu, click Delete, and then click OK.

Quit Registry Editor.

NOTE: After you remove the Upperfilters value and the Lowerfilters value, if you notice lost functionality in a particular program, such as CD recording software, you may need to reinstall that software.


Restart your computer.

To resolve this problem, remove the affected filter drivers. To do this, follow these steps: 1. Click Start , type regedit in the Start Search box, and then click regedit in the Programs list.
If you are prompted for an administrator password or confirmation, type your password, or click Continue .
2. Locate, and then click the following registry subkey:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}
Caution There can be many instances of the registry subkey that is mentioned in step 2. You must make sure that you are in the appropriate registry subkey before modifying the UpperFilters and the LowerFilters values. To verify that you are in the appropriate registry subkey, make sure that the Default data value is DVD/CD-ROM and the Class data value is CDROM.
3. In the right pane, right-click UpperFilters , and then click Delete .
4. Click Yes to confirm the removal of the UpperFilters registry entry.
5. In the right pane, right-click LowerFilters , and then click Delete .
6. Click Yes to confirm the removal of the LowerFilters registry entry.
7. Exit Registry Editor, and then restart the computer.
1. Click Start , type regedit in the Start Search box, and then click regedit in the Programs list.

If you are prompted for an administrator password or confirmation, type your password, or click Continue . 2. Locate, and then click the following registry subkey: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318} Caution There can be many instances of the registry subkey that is mentioned in step 2. You must make sure that you are in the appropriate registry subkey before modifying the UpperFilters and the LowerFilters values. To verify that you are in the appropriate registry subkey, make sure that the Default data value is DVD/CD-ROM and the Class data value is CDROM. 3. In the right pane, right-click UpperFilters , and then click Delete . 4. Click Yes to confirm the removal of the UpperFilters registry entry. 5. In the right pane, right-click LowerFilters , and then click Delete . 6. Click Yes to confirm the removal of the LowerFilters registry entry. 7. Exit Registry Editor, and then restart the computer. 1. Click Start , type regedit in the Start Search box, and then click regedit in the Programs list.

If you are prompted for an administrator password or confirmation, type your password, or click Continue . 2. Locate, and then click the following registry subkey: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318} Caution There can be many instances of the registry subkey that is mentioned in step 2. You must make sure that you are in the appropriate registry subkey before modifying the UpperFilters and the LowerFilters values. To verify that you are in the appropriate registry subkey, make sure that the Default data value is DVD/CD-ROM and the Class data value is CDROM. 3. In the right pane, right-click UpperFilters , and then click Delete . 4. Click Yes to confirm the removal of the UpperFilters registry entry. 5. In the right pane, right-click LowerFilters , and then click Delete . 6. Click Yes to confirm the removal of the LowerFilters registry entry. 7. Exit Registry Editor, and then restart the computer.

DVD drives don't have specific drivers under windows. If it isn't operating correctly, it could be due to filter issues or your ASPI layer could be gerfunkled.

WinXP manual steps to delete the UpperFilters and LowerFilters registry values that can cause CD access problems;
Warning ! Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall your operating system.

To manually delete the UpperFilters and LowerFilters registry values, follow these steps:

1. Start Registry Editor (Start, Run, Regedit)
2. Locate the UpperFilters value under the following key in the registry:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro l\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}
3. On the Edit menu, click Delete, and then click OK.
4. Locate the LowerFilters value under the same key in the registry:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro l\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}
5. On the Edit menu, click Delete, and then click OK.
6. Quit Registry Editor.
NOTE: After you remove the Upperfilters value and the Lowerfilters value, if you notice lost functionality in a particular program, such as CD recording software, you may need to reinstall that software. If the problem recurs, consult with the software vendor for assistance.
7. Restart your computer.