What virus protection program do you have? Try downloading and playing the 0.2.0 Jam version to see if the same thing happens. If you still aren’t able to play the Windows version you might want to try the WEB version.
Yes you can! The .zip file you get from exporting the save data from the web version, you can replace some of the files with ones in the Saves folder in the Windows version, and then import the .zip folder with the copied over files.