Unknown error 17 occurred, workaround

1. Unplug the extra USB device, restart the computer, turn off all kinds of anti-virus software, re-brush, failure;

2. Change the USB port to try again, fail; 3. Delete Apple-related items in the Hosts file (I have two #127.0.0.1 gs.apple.com and 74.208.10.249 gs.apple.com) Try again, failed, but this time is reported 3004 error, this is hopeful; 4.hosts file add back 74.208.10.249 gs.apple.com retry, or 17 error; 5. Delete the Hosts file 74.208.10.249 gs.apple.com, re-add #127.0.0.1 gs.apple.com,

C:\Windows\System32\drivers\etc\hosts

Unknown error 17 occurred, workaround