http://answers.microsoft.com/en-us/insider/forum/insider_wintp-insider_repair/now-available-start-fresh-with-a-clean-install-of/55a2f3c7-4795-4685-b3ee-20187684c511?auth=1

Download link

eef49d58d4fecb3671c37280e5e57c74 RefreshWindowsTool.exe
c5a610b940e5501b99d81a5d7e46da610e121d40 RefreshWindowsTool.exe
cab1311e9f84302b7f04681bcd1f9bbac0f08792294b7c2951b26c96a3152582 RefreshWindowsTool.exe
a554e7723632f88635a519223492ef3538719a010573fa0b1c806078f2cd5c26dca1e166c04a406b03e93a4dfb1f8f17f7f1b51385ed2a80c803cfb4d5a1ba4b RefreshWindowsTool.exe