You may see this Error code 0x80070017 while updating windows 10/8 through windows update services. Few users also reported about this error while they are trying to enable windows firewall.
The probable solution for this error 0x80070017 to fix windows update services issue. To do it your own you need a little knowledge about windows registry structure.
Solutions for Error Code 0x80070017 Windows:
Disclaimers: Before you attempt to fix an issue with the windows update, we highly recommend you to take a registry backup and create a system restore point as a precaution method. In case if something goes wrong, we can restore your computer to the same stage and fix the issues. (In case if you not sure how to back it up, talk to an expert for assistance.)