By default Windows calculator doesn't support order of operation, to enable the functionality you need to activate the scientific view, let me show you how.
If you can't copy files that are bigger than 2 or 4 GB, usually HD movies and such, on to your USB key, it's usually due to the file system the USB key is formatted to.
Windows 8 has very functional calendar to remind you about all events you don't want to miss. In this lesson I will show you an example how to add birthday reminder.