There are things you can do to isolate this down, such as checking the size of your Home folder on the machine. If it is huge, you know the culprit is somewhere in there. You basically go through each folder until you find the large one. A lot of times the culprit is ~/Library/Mail if you use Mac Mail. Also, since you're using a portable, you should check if support.apple.com/kb/HT4878 which goes over 'local snapshots' that Time Machine makes (portables only) when the machine is not connected to the Time Machine backup drive.
Thanks for the response, but I'm looking for answers to a few of the other answers before I look at completeing the steps above.
1. Whyis the new TB drive recognized in image 1 but still have the original 256GB size still recognized(and almost full) in image 1 also? The HD should now be 1 TB, not 256 correct? If this were the case, the HD, would only be fraction of full capacity, Where is the disconnect between reconizing the installed tb HD but, it not being used?
2.Image Number 2 shows once again that the new tb internal HD is recognized. However, in image 3, the HD 256GB drive is still shown underneath the new HD. Does this show that I am misssing something, some step, related to confirming the new HD should be fully reconized instaed of this old 256 that still remains?
3. In image 4, the SATA heading, shows the TB hardrive, However, in image 5, the 256GB drive is still being shown under the storage heading? Once again, seems like I've missed some simple step to make this all the same?
4.Why is the start up from boot up soooo slow now. I was never even close to this slow(slower than PC startup slow) before the new HD was installed. IS this common when updraging to a new HD? Doesn't seem right?
5. Why now all of a sudden when the computer finally boots up are certain programs automatically opening up, word, excel, when they have never opened up like this before?
Summary: 1. New memory issues, 2. Very slow start up, 3. Programs opening up automatically at startup.
Until I address these issues, I'm not going to worry about loking through and deleting heavy folders.
All responses welcomed!