When vivado2017 is started, the “error when launching” dialog box will pop up vivado.bat : Launcher time out”

If oxc000007b error occurs at this time, it is because 32bit DLL is used in 64 bit OS. It is generally caused by the wrong use of vcomp140.dll.

Slove problem：

    Enter https://cn.dll-files.com Search and download the required DLL (mainly its own system bit 32 / 64) and copy the DLL to the directory according to the instructions
    on 64 bit windows,
    the default path of 32-bit DLL file is C: (Windows) syswow64
    the default path of 64 bit DLL file is C: (Windows) system32 \
on 64 bit windows