Did this start happening or a new antivirus install?
Ensure you are running Lumion as an Administrator . Right-click the Lumion icon and select Run as administrator . 💡 Summary Table Likely Cause Quick Solution Antivirus Quarantine Restore files from Protection History. Missing Exclusions Add Lumion installation folder to your whitelist. Corrupt Runtimes Repair VC_redist.x64.exe in the "Various" folder. Storage Issues Clear space on C: drive (30GB+ recommended). Did this start happening or a new antivirus install
Select > Folder and navigate to your Lumion installation directory (default: C:\Program Files\Lumion ). Specifically ensure the "channels" subfolder is excluded. 3. Repair Microsoft Visual C++ Redistributables Did this start happening or a new antivirus install
Here’s an interesting, article-style breakdown of that very specific — and frustrating — error message you’ve encountered: Did this start happening or a new antivirus install