LOL, you guys are wasting your time, he searches on web for anything that supports his dream, I'll bet if Jesthon posts a screenshot of "9650.16384 from a Redmond friend", he will take it as solid evidence.
You need to refresh your knowledge a little bit. Hash (like MD5 or SHA-1) is an unique number to identify a particular file. So you can calculate hash of Windows 8.1 ISO; not of the installed OS!!
Like Tito says, you can't. But you could hash check individual files (or loop through a list of files) via powershell if one was so inclined. Code: $someFilePath = "C:\Windows\explorer.exe" $md5 = new-object -TypeName System.Security.Cryptography.MD5CryptoServiceProvider $hash = [System.BitConverter]::ToString($md5.ComputeHash([System.IO.File]::Open("$someFilePath",[System.IO.Filemode]::Open, [System.IO.FileAccess]::Read))) -replace "-","" $hash # or SHA1 $someFilePath = "C:\MSDN\en_windows_8_1_x86_dvd_2707392.iso" $SHA1 = new-object -TypeName System.Security.Cryptography.SHA1CryptoServiceProvider $hash = [System.BitConverter]::ToString($SHA1.ComputeHash([System.IO.File]::Open("$someFilePath",[System.IO.Filemode]::Open, [System.IO.FileAccess]::Read))) -replace "-","" $hash
Thanks I checked Windows ISO setup.exe with an online hash checker sha-1:68b5c6ab9fa1412a3a44086c2cb1a57a37d3417f MD5:6fb889c8b21fd94750bde9a6b5b62ea1 Which WZT RTM version is this? confused!!!