Hi. I'm David, and I'm happy to help you.
I understand your laptop's built-in camera is not working and is showing code 45 in the "Device status".
Press "Fn + F6", and see if the camera will be activated.
If it doesn't work, try reinstalling the camera as instructed below.
- Open "Device Manager" (Windows + X and select Device Manager);
- Expand "Cameras";
- Right-click on the camera device and select "Uninstall device";
- Restart the PC.
Usually, the camera is automatically reinstalled when restarting the PC.
If the problem persists, let me know.
Feel free to ask back any questions.