Last September I have bought Lenovo think pad. When I was buying it from kolkata . The seller said that it is compatible of Red Hat Linux update version. Because I am always working with Linux OS. But when I came back home and going to install Linux. It is showing lots of error during installation. After trying for long time it has installed but running very slow. RAM was 4 GB in this laptop. But it is not working with 4GB memory. So, It is a wasted my money. I am so unhappy with this laptop version of lenovo.