In case anyone needs the restorehealth command to fix their operating system it is now working for version 1703:

Windows PowerShell
Copyright (C) 2016 Microsoft Corporation. All rights reserved.

PS C:\Windows\system32> sfc /scannow

Beginning system scan. This process will take some time.

Beginning verification phase of system scan.
Verification 100% complete.

Windows Resource Protection did not find any integrity violations.
PS C:\Windows\system32> dism /online /cleanup-image /checkhealth

Deployment Image Servicing and Management tool
Version: 10.0.15063.0

Image Version: 10.0.15063.0

The component store is repairable.
The operation completed successfully.
PS C:\Windows\system32> dism /online /cleanup-image /scanhealth

Deployment Image Servicing and Management tool
Version: 10.0.15063.0

Image Version: 10.0.15063.0

[==========================100.0%==========================] The component store is repairable.
The operation completed successfully.
PS C:\Windows\system32> dism /online /cleanup-image /restorehealth

Deployment Image Servicing and Management tool
Version: 10.0.15063.0

Image Version: 10.0.15063.0

[==========================100.0%==========================] The restore operation completed successfully.
The operation completed successfully.
PS C:\Windows\system32>