Theres a bug problem with the skywind installer. Here is the SkywindInstaller.exe log
Traceback (most recent call last):
File "Skywind.py", line 42, in <module>
File "shutil.pyo", line 117, in copy
File "shutil.pyo", line 83, in copyfile
IOError: [Errno 13] Permission denied: 'C:\\Windows\\unrar.exe'
(Btw the reason why my username is an email is chrome autofill)

Try the Skywind alternate
Try the Skywind alternate installer.