Hi, I downloaded a new ISO so I have an up to date install on my USB stick (via microsoft's windows 10 page), when I run the command line "] Code: dism /Get-WimInfo /WimFile:D:\sources\install.wim /index:1 to check the build is the 1511 10586 it tells me it is a technical preview, is this just a leftover bit of code after Microsoft released it? Code: Microsoft Windows [Version 10.0.10586] (c) 2016 Microsoft Corporation. All rights reserved. C:\WINDOWS\system32>dism /Get-WimInfo /WimFile:d:\sources\install.wim /index:1 Deployment Image Servicing and Management tool Version: 10.0.10586.0 Details for image : d:\sources\install.wim Index : 1 Name : Windows 10 Single Language Technical Preview Description : Windows 10 Single Language Technical Preview Size : 13,822,020,365 bytes WIM Bootable : No Architecture : x64 Hal : <undefined> Version : 10.0.10586 ServicePack Build : 0 ServicePack Level : 0 Edition : CoreSingleLanguage Installation : Client ProductType : WinNT ProductSuite : Terminal Server System Root : WINDOWS Directories : 19245 Files : 97774 Created : 30/10/2015 - 18:41:04 Modified : 30/10/2015 - 18:41:42 Languages : en-GB (Default) The operation completed successfully. C:\WINDOWS\system32> Sorry if it has been asked as the forum search didn't help much Thanks.