Win7 system camera failed to open and prompt information error (code 19) reasons and solutions

A large part of the win7 system users usually use computers mainly for leisure and entertainment, such as watching movies, chatting QQ, listening to songs, etc. At this time, the role of the camera is reflected. The user can use the camera to make voice and video, which greatly facilitates the user's needs. However, if the user feedback camera fails to open, open the device manager to view, prompt: Registry information error (code 19). Why is this? What should we do in this situation? Let's follow the small series to understand the specific reasons and solutions!
The reasons are as follows:
The third-party software takes over the system driver library In the information of the components in the system registry information, the key value of a third-party software is added, and the device is hindered from the recognition drive, so the system cannot load the driver normally and the camera cannot be opened.
Workaround:
1, press win+R key combination, open “ run & rdquo; window;
2, enter the "regedit" role in the run window and enter the carriage;

3, found in the open system registry editor on the left side of the
HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlClass {6BDD1FC6-810F-11D0-BEC7-08002BE2092F};
4, after the child finds the key value, delete in the right window Upperfilters value and Lowerfilters value;

(If you don't have this key value, don't modify it temporarily, then delete it)
5, restart the computer, then uninstall and reinstall the driver.