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.
A less known but very useful feature that works since Windows XP has been released. You can easily rename a bunch of files in a matter of seconds, let me show you how.
If you don't want anybody to see your profile on your computer you can lock it with the password. In this lesson I will show you how you can set different password options to log in, in Windows 8.