In
=?Utf-8?B?U2Ft?= said:
What is tftp.exe? Should I allow my firewall and give it access? It's
located the following directory
That's a client program for sending and fetching files over a network
using the "Trivial File Transfer Protocol". It's a bit like FTP except
that it doesn't use userids and passwords for authentication.
If you're not invoking the program yourself (it's a command-line program,
so you'd have to open a command window to do it), it's possible that a
trojan has been installed on your system and is using TFTP to send data
from your machine to some other machine, or doing something similarly
nasty.
So, unless you're running the program yourself, you should NOT allow it to
pass through your firewall.
Then, find out what's running on your machine that's trying to use the
TFTP program.