I Installed LTspice in the parent directory of where I actually wanted to install it. When I used the windows "remove program" function it used the LTspice uninstaller to uninstall the files. I placed LTspice in the parent directory of the directory I wanted to install it in, which was "program files". I assume it saw all files in program files as something belonging to LTspice and swiftly removed them from my system. I don't get the feeling this is intended, and at the same time I have to admit I don't know the supposed behaviour of uninstaller.