I have Vegas Pro 13 and have used it mostly problem free besides the occasional lock up. I just recently upgraded to Windows 10 and am doing a small project this morning for the first time since upgrade and it has stopped working or locked up 4 times??
Is this not compatible with Windows 10 or another issue?
The best option i would recommend is upgrading Vegas Pro also. Since you already upgraded Windows, that should be your next logical step for an efficient workflow..... But make sure you remove/uninstall everything Vegas before you do the new upgraded install.