The system image tool in Windows is one way to back up your system, but if you upgraded to Windows 8.1, it's not where you last saw it.

To get started, pull up the Control Panel in Windows 10. Don’t click on System, which will launch the About window in the Settings app. Instead, drag the System link to your taskbar. This should ...

The Windows 10 Assessment Tool tests the components of your computer then measures their performance. But it can only be accessed from a command prompt.