Why did Windows create an encryption key?

[Stefano Piccardi]

I'm not sure if what happened is linked to TCC or not, please help me understand.

copy ftp://mgppublic:[email protected]/wcmenu.zip /G

I was using the above to bring in wcmenu.zip from a remote system, which resulted in an 'invalid password' error (which isn't the issue). The first time my firewall prompted me to enable TCC as an ftp client, and I did. I repeated the copy command three or four times and it always failed with 'invalid password'. Then (this is the issue) Windows Security Center displayed a message saying that I should save file encryption credentials.
What file encryption credentials? How did they get created? What file was encrypted? Where is it? I never used file encryption on this Windows 7 system, I don't even know how to turn it on/off.

 

[rconn]

It's not TCC.

 

[Stefano Piccardi]

Not even the 3rd party network library?

 

[Charles Dye]

Do you have an FTP.CFG file?

 

[rconn]

Not even the 3rd party network library?

Nope. But I suppose it's possible your firewall decided to do it after seeing several failed logins.

 

[Stefano Piccardi]

Do you have an FTP.CFG file?

Bingo. A new, zero-sized FTP.CFG file appeared in my TCC folder, date and time correspond to when I attempted ftp copying, and file attribute E is enabled.