System Explorer is free, awards winning software for exploration and management of System Internals. This small software includes many useful tools which help you Keep Your System Under Control.
...of Windows 10, more Windows 10, and some other stuff
Windows 10 review: Microsoft goes back to the future
Windows 10 'Service Release 1' coming this month
These ten Lumias will be first to get Windows 10 Mobile
The Redmond Report - Episode 4: Windows 10 gets hit by lightning