UNO stopped uploading

I already tried to remove everything ......no chanses....I cannot upload anything!!
I spent already several hours trying to understand....
...i beleive that fault coud be caused by previuos upload and by the fact that the application continously write to the comm and reset himself....
do you think that's possible?
I have to find the way to remove this application , but I dont know how to do it: the only way I know is to upload onother one but I cannot do it!
Last chanse it is to buy another processor and to change it in the board....
but , there must be a SOFT way to solve this problem, (i hope)!

Thank you again

Paolo
ps.
I attach the verbose output from the avrdude:
I noticed that fuses values are :0...
isnt very strange??

avrdude_out1.txt (12 KB)