If you mean to uninstall and reinstall the software I cannot do it again as the the software key will not work.
Can you provide a fix?
I deleted the PE-DESIGN 11 folder (C:\Program Files (x86)\Brother\PE-DESIGN 11) and then I ran the setup program (Setup_eng.exe) and it gave me Modify, Repair, and Remove options:
I chose Remove to remove it and then I reinstalled. Maybe that will work for you, but I can't be sure.
If that doesn't work maybe Revo Uninstaller can remove it so you can reinstall.