repeat installation

Hello Mikrotik user’s
I am new here and want to greetings all here
I want to ask if anyone here have similar problem like my problem.

I try to install Mikrotik ISO file into Hyper-V manager and VirtualBox, when i am installing or setup the ISO file.
When it’s all installed the program dont let me or are getting me back like first installing.
I try to many time but i dont have idea
Can anyone help me.

Best Regards and Thanks