diff -r ae0734493f6b Lib/ssl.py
--- a/Lib/ssl.py	Fri Nov 22 02:22:51 2013 +0100
+++ b/Lib/ssl.py	Fri Nov 22 02:36:11 2013 +0100
@@ -303,6 +303,7 @@
     data, such as certificates and possibly a private key."""
 
     __slots__ = ('protocol', '__weakref__')
+    windows_cert_stores = ("CA", "ROOT")
 
     def __new__(cls, protocol, *args, **kwargs):
         self = _SSLContext.__new__(cls, protocol)
@@ -334,6 +335,30 @@
 
         self._set_npn_protocols(protos)
 
+    def load_windows_store_certs(self, storename, purpose="serverAuth"):
+        if isinstance(purpose, _ASN1Object):
+            asn1obj = purpose
+        else:
+            asn1obj = _ASN1Object.fromname(purpose)
+        certs = bytearray()
+        for cert, encoding, trust in enum_certificates(storename):
+            if encoding == "x509_asn":
+                if trust is True or asn1obj.oid in trust:
+                    certs.extend(cert)
+        self.load_verify_locations(cadata=certs)
+        return certs
+
+    def load_default_certs(self, purpose="serverAuth"):
+        if isinstance(purpose, _ASN1Object):
+            asn1obj = purpose
+        else:
+            asn1obj = _ASN1Object.fromname(purpose)
+        if sys.platform == "win32":
+            for storename in self.windows_cert_stores:
+                self.load_windows_store_certs(storename, asn1obj)
+        else:
+            self.set_default_verify_paths()
+
 
 class SSLSocket(socket):
     """This class implements a subtype of socket.socket that wraps