Windows 10 build 21h2 end of life July 8, 2019 16 32 64 128 Windows 10 version 21h2 end of life Windows 10 enterprise build 21h2 end of life Windows 10 pro version 21h2 end of life Windows 10 enterprise version 21h2 end of life Windows 10 home version 21h2 end of life Windows 10 enterprise 64 bit edition version 21h2 end of life