Following the instruction on MiKTex website(see https://miktex.org/howto/portable-edition), Ｉ installed the latest portable version of MiKTex(basic-miktex-21.2-x64.exe) and it works well. Then I move the installed MiKTex folder into another place which cause everything changed, and the MiKtex can not work any more. This means it is not portable. So, in my case, how to make the MiKTex portable that can be placed everywhere. Thanks.
At the end of the potable version installation, a fault warning message is given(refer to the attachted figure). I wonder if it is because my operating system is
Windows 7. Or does that mean the latest MiKTex dosen't support win7?