Hi, the solution I found, was in the Arduino IDE, go to,
1) File then Preferences.
2) At the bottom of the file preference page, there is a file location for (preferences.txt).
3) Click on that, and you will be taken to the ArduinoData directory.
4) In that directory, you will find a text file called preferences.txt
5) Click on that and up comes the text file.
WARNING PLEASE CLOSE THE ARDUINO IDE BEFORE EDITING THIS TEXT FILE.
6) look for the entry, last.sketch.count=0
7) change this entry to, last.sketch.count=1
save and exit
This will call up a new blank sketch, instead of the last sketch, when you next restart IDE.
I hope this will be useful, please reply if it was.