To ensure optimal protection and resolve the issues mentioned, users are advised to:
ESET released a small utility specifically for error 803191. Download from ESET’s knowledge base article #6982. Run it as Administrator. It will automatically: eset nod32 antivirus and smart security 803191 fixed
Open your ESET product (NOD32 Antivirus or Smart Security). Step 2: Press F5 on your keyboard to open the Advanced Setup window. Step 3: In the left-hand tree menu, navigate to: Update → Profiles → Update (Default profile) Step 4: Click on Clear update cache next to the cache information. Step 5: A confirmation dialog will appear. Click Yes . Step 6: Immediately click on Update in the left-hand tree menu again and select "Empty update cache and roll back partial updates" (this option appears after clearing the primary cache). Step 7: Click OK to save changes and close Advanced Setup. Step 8: Return to the main ESET window and manually click Update → Check for updates . To ensure optimal protection and resolve the issues
if a previous version (like v9 or higher) won't uninstall properly before you downgrade to v8 ESET Security Forum HIPS Notifications: If you receive too many pop-ups, set HIPS to Smart mode It will automatically: Open your ESET product (NOD32
As of 2026, version 8.0.319.1 is considered a .
