When you use the option in the program to boot to Safe Mode, that will boot you into Safe Mode with Networking.
However, in Win 10 you would either have to Ethernet connect or physically reconnect wireless as in that mode, wireless is auto disabled.
Windows Repair is not a tune up program like some of those IMO wrongly say will tune your system to peak performance.
Windows Repair can repair a system when it has problems or has been damaged by an infection, providing that infection has been removed.