Error Edit File System hosts on Windows

Open your cmd, run as administrator, move to this path :

$ cd C:\Windows\System32\drivers\etc

Unlock security / grant access for editing file :

$ attrib -s -h -r hosts

$ nano hosts

Lock security again :

$ attrib +s +h +r hosts

Source :

https://share.gemini.google/OOnfiX1NsUcP