• The path suddenly becoming invalid (i.e. a disk being removed or disconnected)
• Some other process taking exclusive control over the file (MS OneDrive & some virus checkers are bad for this).

• Do a disk check on all your drives, to make sure their not corrupted.
• Avoid using subdirectories of My Documents / Documents & Settings for Sonar related files. OneDrive in Win10 will periodically want to take charge of these while Sonar is running, and will cause you crashes. Put them somewhere else, preferably on a separate drive. Alternatively, exclude these directories from OneDrive, or don't use OneDrive at all.
• Make sure your plugin directories, project/wave directories and any sample content directories are excluded from virus scanners.

msmcleod
From what I've seen, general error is caused by:

• The path suddenly becoming invalid (i.e. a disk being removed or disconnected)
• Some other process taking exclusive control over the file (MS OneDrive & some virus checkers are bad for this).

I'd advise:

• Do a disk check on all your drives, to make sure their not corrupted.
• Avoid using subdirectories of My Documents / Documents & Settings for Sonar related files. OneDrive in Win10 will periodically want to take charge of these while Sonar is running, and will cause you crashes. Put them somewhere else, preferably on a separate drive. Alternatively, exclude these directories from OneDrive, or don't use OneDrive at all.
• Make sure your plugin directories, project/wave directories and any sample content directories are excluded from virus scanners.