I just use as a note taker in meetings so I don't have any other programs or files on it.
Up until recently it worked fine, however, when I try System Update I get an error, with the message insufficient room on harddisk. As I have no files on the computer I have plenty of spare space with more than 40 GB available. I have checked this many times.
I have unistalled and reinstalled the System Update software. Same thing.
I called the Lenovo Support last year. They hadn't heard of the problem but offered to investigate and call back. They never did.