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, and the message prompts “due to its configuration information (in the registry) Incomplete or corrupted, Windows cannot start this hardware device. (Code 19) & rdquo;, can not be repaired, the fault situation is as follows:

Cause analysis:

Due to the takeover of the system driver library by third-party software, the component information in the system registry information is A key value of a third-party software has been added, which 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 run window, press Enter, open the system registry editor, as follows Figure:

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