it's my first post here so I'm sorry if I did anything wrong, I'm still learning how to use this site. I have a following problem:

I have downloaded a Guitar Pro crack installer using the torrents. And for some time everything was all right, I successfully downloaded the installer, installed the program on my laptop, ran it a couple times. Everything was okay. Now I probably should tell you that the whole crack worked like this: the whole .exe program installer was the official program that installed the program defended by the license input prompt. And with it, there was also a copy of the program (not the installer) .exe launcher that didn't have the license prompt. That's how the whole crack worked. After successfully installing the whole program, the user was supposed to copy the cracked .exe into the program's folder and overwrite the original .exe with the cracked one. A few days ago I noticed that the desktop shortcut for the program launcher (the crack .exe) was dead. The OS has told me that the shortcut leads nowhere, its path was invalid and the shortcut's target didn't exist. Today I tried to find out what's happened. The cracked .exe was nowhere to be found in the folder where it should have been and always has been. In my \Downloads folder I have had a copy of the installer and the copy of the cracked .exe launcher so I went there to copy it into the app's directory. That one disappeared too. I held yet another copy of the installer and the cracked .exe on an external disc so I connected it to my computer and checked for the executable I needed. It was there. Then I launched my web browser to check whether it is possible to block the Antimalware service's access to some specific files (I wanted to protect the last cracked exe file I had left against Windows). It took some minutes (max 5 min), I didn't find what I was looking for and when I went into the directory with the cracked .exe file to copy it into the app's directory, the file wasn't there anymore. My system's trash bin doesn't contain these lost files, I just checked there. My suspicion is that the antimalware service has wrongly took the cracked .exe as some terrible malware and took it upon itself to delete its every copy. I can't say that that's what is happening with a 1000% certainty but I don't know what other explanation can be there. :c
I need help in finding out what could have happened and how to stop that and I will be most grateful for your help and advice. Please help :'(