Welcome to the Magix Sound Forge users forum @wendi-w.
Error messages? Other clues?, Have you tried launching SF with the main <.exe> in 'Program files (x86)> Sony> Sound Forge> Sound Forge Pro 11.0 ?
FYI, SF-10 has a 'Elevated Privilege' issue that has been known to emerge in SF-11 on a few PCs after a Windows 10 update. If that is the case, the safest / easiest fix is to 'Run SF as an Administrator' in the 'Properties> Compatibility' settings. (Right-click the SF <,exe> or launch shortcut). There is a registry tweak otherwise.