If you have uninstalled McAfee but still see this entry, it may be a leftover "ghost" file. You can safely remove it from the file (located at C:\Windows\System32\drivers\etc\hosts ) using an administrator-level text editor. Is it a virus? No, but some malware cleaners might flag

In the world of computer networking, the hosts file is the digital equivalent of an old-fashioned phone directory. It is a plain text file found on all major operating systems (Windows, macOS, Linux) that maps hostnames (like google.com ) to IP addresses.

Elias looked at the "Purge System" button. If he pressed it, the glitch died. If he let it run, the "0001 host" would eventually leak into the global network. Suddenly, a new line appeared on his monitor: