Revert "Windows 10 Insider Preview Build 10565"

This reverts commit 47e230e6.

windows_10.json

@@ -97,9 +97,9 @@
     }
   ],
   "variables": {
-    "iso_url": "http://iso.esd.microsoft.com/W10IP/BF15E0F8F8F6B6BFCD0F62892BFBA60756371D21/Windows10_InsiderPreview_x64_EN-US_10565.iso",
+    "iso_url": "http://care.dlservice.microsoft.com/dl/download/C/3/9/C399EEA8-135D-4207-92C9-6AAB3259F6EF/10240.16384.150709-1700.TH1_CLIENTENTERPRISEEVAL_OEMRET_X64FRE_EN-US.ISO",
     "iso_checksum_type": "sha1",
-    "iso_checksum": "EA37A740FD0744CAE856D1B12FB4167F6EE88B54",
+    "iso_checksum": "56ab095075be28a90bc0b510835280975c6bb2ce",
     "autounattend": "./answer_files/10/Autounattend.xml"
   }
 }