saving photo from one format to another

Tech-Archive recommends: Repair Windows Errors & Optimize Windows Performance

While my photos are in JPEG and I open it up on my editor, I change it to
TIFF when I am finished with it. I will place it either in My Brief Case or
My Pictures.

Both icons for the JPEG and the TIFF are the same. How can I distinguish one
from the other.

I had and old computer with XP SP2 and I did not have thins prblems. and I
Just bought my present one the problem started.
.

Relevant Pages