Use Draw.io Portable as your backup. It runs flawlessly from a USB, requires no registry, and opens many SmartDraw files (if saved as XML).
If these troubleshooting steps don't resolve the issue, you may want to consider using an alternative diagramming tool that is designed specifically for portable use. smartdraw portable fix
Your files stay in the cloud (or your preferred storage like Google Drive ) rather than on a physical drive. 2. Desktop Launcher Troubleshooting If you use the SmartDraw Desktop Launcher Use Draw