All these problems never showed again after using this method), didn't fix this webcam issue completely, since the fix lasts just for a few days (in the worst scenarios, just a few hours), than it appears again.ġ) Is this a software problem or a hardware problem? Just once this happened even to the power cable. However, even the Power Reset, that has always fixed other problems on my PC (sometimes, it happened that the fingerprint sensor wasn't detected. However, this is what I did: with the laptop still on, I've pushed and kept pushed the Power button for about 15-30 seconds, until the PC shut down and I heard some internal sounds, confirming the reset). I've tried all the methods suggested by Lenovo and Microsoft in order to fix this issue, but nothing worked, except the Power Reset (I don't know if this is the correct name of this procedure. I went to Device Manager and I found out that the camera driver was missing and, under USB Controllers (Universal Serial Bus) section, the device was listed with a yellow flag saying 'Unknown USB device (Device descriptor request failed)'. As the title says, starting from a couple of days I've noticed that the webcam of my laptop, a Lenovo Yoga 9i (14ITL5, 11th Gen Intel CPU, 2020), wasn't working, because, when I opened the Windows 11 Camera app, it reported the error '0xA00F4244 NoCamerasAreAttached'.