I received a new Asus ZenBook UX430 laptop as a gift at Christmas. It was bought from John Lewis and it came in a sealed box. The hard drive is a 256GB SSD and there was only 184GB of space left on it when I got it. There is a windows.old folder which is taking up nearly 25GB of space, can this be safely removed? and why would there be a windows.old folder on a new laptop? I would appreciate if anyone could offer some advice. Thanks