disk utility
If I erase my hard drive will I have problems with my Wi-Fi connection or is it just a matter of signing in again after I reinstall Mojave. Reason my air seems like someone let the speed out of it compared to prior upgrade.Thank you.
Question marked as
Best reply
As long as you reinstall macOS Mojave after erasing, it shouldn't cause any issues. You'll just need to sign in to your WiFi network again during the setup assistant.