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Find Windows 7 Build Number

To Find the Windows 7 Version number or build Number,
open Registry Editor by pressing [WINDOWS KEY] + [R] and then type “regedit”
then navigate to

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion

value of the string BuildLabEx will give you the full details about the version you are using and the build number.
Windows 7 Build Details Here 7600.16385 is the full build number of my windows 7. amd64 means am using a 64 bit version of windows 7.090713 means this build was created on 13th July 2009.