GetDataBack can probably recover most of your pictures if you run it IMMEDIATELY!
Hint: It's not free.
Hint: My Pictures is almost certainly on C: where Windows installs most new things.
I would suggest learning how to use Picasso before deleting any more pictures.
again, lost all my pictures. That software has some irritating bugs that Google seems to not want to fix. All pics are in My Pictures, I go in to move one pic to Picassa and the whole Picture folder goes. At one time I had a thousand or more duplicates in Picassa and My Pictures. I finally moved them folder by folder, created folders in My Pictures which seemed to work. I opened each folder and 'select all' then 'moved to Picassa'. So once I got all that I wanted in Picassa, I went back to My Pictures and deleted the entire contents so there was no chance of "accidentally" moving them again to Picassa. So, I had Picassa fixed just right, and didn't need any pictures in My Pictures so I emptied the recycle bin and so was Picassa emptied. Now all my pictures are gone. GOOGLE FIX PICASSA NOW!!
Is there a way to get those back? I've tried a whole bunch of other software and if it weren't for those bugs Picassa would be the best. The others were either too difficult or not good enough. This is the third time I've tried and got burnt by Picassa.