Not a lot to go on - we need more information to help diagnose the issue(s) you are having:
Which Magix or Vegas program are you upgrading from:
Video Pro X
Movie Edit Pro, Magix Movie Studio 18 or later version
Photostory
Vegas Pro or Movie Studio 17 or earlier version
Please quote the full name.
The specification of your computer system including Windows version and program version, see this topic for what is required and please quote processor and graphics card make/model in full, and also what monitor/screen resolution(s) you are working with if this is a laptop.
I would suggest you put this information in your profile signature so we do not have to keep asking for it.
Are you getting any error messages, if so then please quote them in full or provide screen shots.