Don’t tell me it’s a false Positive detection, cause it’s not.
I will tell you it’s a false positive, because as far as I can tell, it is one. I rebuilt that binary from source (which can be done by using this tool), and got the exact same file as in the release.
Now if you are uncomfortable with telling Windows Defender to ignore that file, you can download TorBrowser 32bit from this page, it should work on both Windows 32 and 64 bits, and doesn’t appear to bother Windows Defender.