Why does pic sometimes enlarge OK then not OK

[rmr]

Not sure if I posted this in the correct area,,
I get a picture in an email, very small, left click and a large version of the pic comes up, very good quality.
When I save the small pic to "my pictures" and then enlarge it the quality is very bad, blurry, unusable.
I use Yahoo email, I can only save the pic in the small version
from the email, not the large quality version I get after I left click. There is no option to save the big pic from email.
Thanks!

[glc]

When you right click on the large version, what options do you have in the popup menu?

[rmr]

When I do as I described in OP there is no options,
nothing happens when I right click on large pic.
I did figure it out, if I click on the file name not the thumbnail it opens and enlarges the pic with Windows Photo viewer and all is good, I can save the large quality picture.

But when I first open the email it shows just a thumbnail
of the pic, if I click on the thumbnail it enlarges into
a nice quality pic. But that pic gives me ZERO right click options.
But if I save the thumbnail to MY PICTURES and then try to
enlarge the thumbnail it is a blurry useless pic.
So now I know how to open the pic the correct way
if I want to save the high quality large picture.
I feel like an idiot now, it seems so easy once I figured it out.