My software doesnt start

Hi

I have reactivated the software (DraftShigt 218 x64 SP3 in Windows 7) and I have statert it one time, I have changes on my drwawing and I close and save the drawing. But it can not start again, every time that I try restart , automatically it close itselve without error message. I have uninstalled it and reinstalled again, but the bad behaviour is the same.

Have you any comment to how solve it, please?

Thanks so much