How to disable dumprep.exe:
- Right click on “My Computer,” choose “Properties” from that menu.
- Click on “Advanced tab,” Click the “Error Reporting” button.
- Check the “Disable error reporting” box. You may choose to uncheck the the box below it, “But notify me when an error occurs,” if desired.
Voila, the annoying dumprep.exe tool is now disabled!
Referência: link