This could be an issue with the Lenovo Easy camera software application installed on the laptop.
1) Did you make any changes to the driver or the software application prior to this laptop?
2) Have you installed the driver for the webcam?
Let’s download the driver for the webcam and install it on the laptop. Check if it makes it easier to use the camera.
Refer to the link to download and install the driver for this model:http://support.lenovo.com/en_US/downloads/detail.page?DocID=DS035257
Check if you are able to use the camera. If not, you can post the query on Lenovo forums for further assistance. Refer to the link:http://forums.lenovo.com/t5/Windows-7-Discussion/bd-p/Beta_OS
Please let us know if you have more queries on Windows.