running on Windows 10, I have removed Vegas pro 17 then reinstalled, still no resolution, removed Vegas again, removed all registry entries, rebooted and reinstalled, still no resolution. Checked my AVG Vegas is trusted. I have Vegas 14 and 15 on same PC they run with no problem but of course will not open Vegas pro 17 files. Keep in mind, this is sudden and had been working fine up until this issue appeared.
The error messages were sent in when they popped up. They did not include and error number