All fn keys work except the volume up, down, and mute this just happened yesterday I haven't installed anything new is there a driver or something that will fix this?

My brother purchased dell laptop.he got a windows 7 with it.he installed it on his dell lap top.I want to install win 7 on my ibm lenovo laptop also. Can I install it?what about the cd key?

So here's the thing, I own a Compaq laptop and my screen broke. So instead of buying a new screen, I'm getting a Dell laptop from a friend because his hard drive went out and he doesn't want it anymore. So I want to swap the hard drive from my compaq with the one in the dell. Will it work?

6400 Inspiron Dell Laptop/mouse pointer deleted? Someone please help me,urgent help! Dell Laptop [wireless} I accidentally deleted my mouse pointer from registry,now when I startup, the mouse stays froze and I am now unable to even get to start or and system recovery cause it's not moving at all,...

Help, I can't even open in Safe Mode