New Version Installation

[Emilio Guifarro]

When installing a completely new version to replace an older version that is not upgradable, is there any specific instructions I have to follow?
The older version I have is 5.41.05 to be replaced with the newest one.
Laptop windows 10 pro 64bits, I5 2.2ghz, ram 6gb, HD 371 gb free.
The why of my question is because I already messed installing it in another laptop windows 11 pro, and I still can\'t fix it.
Here in this forum, the only guy expert helping us is Roy Dennis.
MTU customer support sucks. I submitted a ticket longer than a week ago and still don\'t get an answer from MTU.
I am considering dumping in the trash can Hoster and go with power karaoke video, even though I might have to convert to mp3+g files some 10k .kma files.

Thanks to Roy in advance since I am sure he is the one who will try to help me.