Lenovo notebook, one machine random camera can not be used normally prompting the registry information error code 19 processing

Symptom:
During the use, the camera driver will be marked with an exclamation mark, but the installation driver is invalid. Check the device manager device status. The message prompts “due to its incomplete configuration or has been configured in the registry”. Damaged, Windows cannot start this hardware device. (Code 19) & rdquo;, can not be repaired, the fault situation is as follows:

Cause analysis:
Because the third-party software takes over the system driver library, the unit information in the system registry information is added one line. The key value of the third-party software causes the device to be blocked when it recognizes the driver, so the driver cannot be loaded normally and cause a malfunction.
Solution:
Please note: Due to the risk of modifying the registry, please backup the relevant data of the registry and then perform the following operations to avoid system abnormalities caused by excessive modification.
First, please click back to the desktop, press the win+R key combination to open the “Run” window, enter “ldedit” in the running window, press Enter, open the system registry editor, as shown below: Br>
Please find the HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlClass{6BDD1FC6-810F-11D0-BEC7-08002BE2092F} sub-item through the tree structure on the left.

After finding the key value, delete the Upperfilters value and Lowerfilters in the right window. After the value (if you don't have this key value, don't modify it temporarily, then delete it), restart the computer, then uninstall and reinstall the driver.