Windows Version

There are two types of Windows version.
1. Release verion
2. Build version

How to check the version

1. on Registry

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion
"CurrentMajorVersionNumber"==(REG_DWORD)0x0a
"CurrentMinorVersionNumber"==(REG_DWORD)0x00
"CurrentBuildNumber"==(REG_SZ)17134
---
"CurrentBuild"==(REG_SZ)17134
"CurrentVersion"==(REG_SZ)6.3

2. by using command

C:> systeminfo