Hey, so i migrated my accout now i cant log into any server i followed this instruction

1. Go to the Start Menu and locate notepad. Right click notepad and select Run as Administrator
2. Press Ctrl and O on your keyboard, then enter %SystemRoot%\System32\drivers\etc\hosts as the "File name" and press "Open"
3. Remove every line mentioning "Mojang" and hit save (Ctrl+S). 

but when i hit ctrl O and i enter %SystemRoot%\System32\drivers\etc\hosts and then Open nothing happens im using blazing pack (also sorry for my english) please tommorow is a good day i need minecraft at 5 PM please anwser this

uptade 1: i did evrything and still nothing shows up when i hit open please im crying