ERROR: unable to download webpage: <urlopen error...

[supermariomd]

youtube-dl do not function on my system. Help, please.

C:\Users\Олег\Desktop\youtube-dl>C:\Users\Олег\Desktop\youtube-dl\youtube-dl.exe
 -v -F http://www.youtube.com/watch?v=hnJIRPiCqRw
[debug] System config: []
[debug] User config: []
[debug] Command-line args: [u'-v', u'-F', u'http://www.youtube.com/watch?v=hnJIR
PiCqRw']
[debug] Encodings: locale cp1251, fs mbcs, out cp866, pref cp1251
[debug] youtube-dl version 2016.02.22
[debug] Python version 2.7.10 - Windows-8-6.2.9200
[debug] exe versions: none
[debug] Proxy map: {}
[youtube] hnJIRPiCqRw: Downloading webpage
ERROR: Unable to download webpage: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILE
D] certificate verify failed (_ssl.c:590)> (caused by URLError(SSLError(1, u'[SS
L: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:590)'),))
  File "youtube_dl\extractor\common.pyo", line 355, in _request_webpage
  File "youtube_dl\YoutubeDL.pyo", line 1905, in urlopen
  File "urllib2.pyo", line 431, in open
  File "urllib2.pyo", line 449, in _open
  File "urllib2.pyo", line 409, in _call_chain
  File "youtube_dl\utils.pyo", line 831, in https_open
  File "urllib2.pyo", line 1197, in do_open

[dstftw]

Remove expired certificates: #7309 (comment).