Photoshop elements 12 - convert a catalog

Question

My PC has three drives
C for the programs, D for the photos and F for the backup photos
With the upgrade to Elements 12, C is nearly maxed out
Except for "C" there are multiple catalogs on each drive, C should have none
I do not see an ability to convert the most recent catalog on each drive?
When a catalog is converted - does it reside on the same drive as the catalog?
If a catalog ends up on the wrong drive, for example C - can I just move/drag it to another drive?
Your catalogs end up under something called "breeze data" and are very diffcult to find, why are they called this? 
This conversion appears to have placed the converted photographs in 'C", is that possible, since they were not there at the start?
When I tried a conversion earlier this evening, it only did the most recent photographs I had accessed, how do I ensure it gets them all?
Since it did a partial conversion, will the rest of the conversion land in the same catalogue or in a completely new one?
When a file is converted, and I return to the drive, how will the icon be changed so that I know it has been converted?
For the previous elements 10, can I just drag it from Drive C to D (that way I can still use it with the pictures I have not converted), and have it still operate or must it reside in a program files folder?
As I type this I wonder if I might not be better off with just leaving the photographs as they are on 10 and starting afresh on elements 12
Sorry for all the questions
Thanks

Answer 1

1) For those backup catalogues that I have on D and F i can still back those up by going to the drive (through photoshop elements and your instructions above) and doing a conversion.  The result will still stay in the same drive.  If I have multiple catalogues on a drive, I should convert each one of them or just the most recent?
You can convert any catalog that you may need, it's up to you to decide if it's worth converting for ulterior use.
2) For that backup of the catalog that was done in C, and then completely filled that drive, there is nothing I can do except increase the memory on drive C
If your C: drive can't hold all your picture files, you can use external drives to increase your storing space. Catalogs keep track of your images on different drives. You can move all or a part of your picture files to other external or internal drives. External USB drives are a good and affordable solution. The catalog itself (the catalog folder) may stay in the default location in your C: drive, or you can move it elsewhere. The organizer will be more responsive if the catalog in your main internal drive, but moving the catalog to an external drive containing all your picture files is a good way to be able to share your pictures with another computer having Elements.
3) After all the conversions are done, I can de-install photoshop elements 10 from C because it will no longer be useable with the old photographs
Yes, that will free up some space.
4) I should not touch/move the converted files in C
Is this correct?
You can move or copy the catalog folder from C if there is a good reason for that, such as sharing the catalog with another computer. Since the catalog manager in Elements does not allow to do the move from default location to a custom one (while it enables the opposite move), you simply use the explorer / Finder to move or copy the catalog file to custom location. Simply double click on the catalog.pseXXdb file to open the organizer and the moved catalog.
Of course, moving picture files from C is another matter. Either you use the organizer to move those, or you use the explorer / finder, which will disconnect the link to the files and require that you do a 'reconnect' from the organizer (not always easy).