windows 10 pro Insider Preview - Microsoft Community

windows 10 pro insider preview evaluation copy.build 16257.rs_prerelease. 170728-1630 @ right hand corner computer not activated.  

windows 10 pro insider preview evaluation copy.build 16257.rs_prerelease. 170728-1630 @ right hand corner computer not activated.  

you may want check in settings activation. far preview evaluation copy in bottom right hand corner normal. time removed when becomes rtm version. nothing worry about, way suppose be.

Windows Insider Program / Windows Insider Preview / Install, upgrade, and activate / PC