I bought one, beautiful machine!But, went into the bios, and settings were locked with a password.No changes can be made to the machine in the future. If I replace the hard drive, memory, then I cant change the bios.I really liked this machine and wanted to keep it, but after being bounced around and eventually being sent to Dell, who wanted a payment to unlock machine, I gave up.They missed this on the testing / renewal process.  Jumping through hoops to get a machine that can be changed, and finally after 2 hours on calls, gave up.I expect more from renewed machines.