As usual I was goin to clean all the bad things I have on my computer, but every time I clicked on the Cleaning window (not the clean button) the program crashed.
So I uninstalled it and well... the installation crashes everytime I click on Install. So, i tried the slim version that correctly was installed but it won't open now, just crashes (both regular and x64)!
What I tried:
-portable and slim version
-already deleted regedit files
-I have no antivirus, just windows defender sh*t
Edit (I have MalwareBytes, but CCleaner folder is in exclusions