Internet Recovery Mode downloads the macOS exactly as it would have been when your Mac came out of the box, this helps rule out issues caused by updates.
If you’re having problems with your Mac that may be caused by problems with the macOS, Internet Recovery Mode can download a clean copy of OS X. The difference between Recovery Mode and Internet Recovery Mode So, following a proper, Apple created Internet Recovery system which means you can reinstall your operating system efficiently and with the smallest amount of data loss possible. That does not mean you will never run into issues, however. If you're using Boot Camp to start up from Microsoft Windows, set Startup Disk preferences to start up from macOS instead. Then shut down or restart and try again.One of the great things about macOS is that it tends to be relatively stable.
If you're using a keyboard made for a PC, such as a keyboard with a Windows logo, try a keyboard made for Mac. Or use your built-in keyboard or a wired keyboard.
To use any of these key combinations, press and hold the keys immediately after pressing the power button to turn on your Mac, or after your Mac begins to restart.