Error: (8921,246) "Unable to locate a valid Norton LiveUpdate server"


Check proxy settings

  1. Press the Windows + R keys to open the Run dialog box.

  2. Type in the following text, and then press Enter.


  3. In the Internet Properties window, on the Connections tab, click LAN Settings.

  4. Do one of the following:

    • If you do not use any proxy servers, or if you don't know about proxy servers, make sure that the Use a proxy server for your LAN option is unchecked.

    • If you use a proxy server, make sure that the settings are correct.

  5. Click OK.

  6. In the Internet Options window, click Apply and then click OK.

    If the problem persists, go to Step 2.


Download and run Norton Power Eraser

  1. Download Norton Power Eraser.

  2. Click Save.

  3. Select the location as Desktop, and then click Save.

  4. To run Norton Power Eraser, double click the NPE.exe file.

    If the User Account Control window prompts, click Yes or Continue.

  5. Read the license agreement, and click Accept.

  6. In the Norton Power Eraser window, click the Scan for Risks icon.

  7. By default, Norton Power Eraser performs a Rootkit scan and requires a system restart. When you see a prompt to restart the computer, click Restart. If you do not want to include the Rootkit scan, go to Settings, and uncheck the option Include Rootkit scan (Requires a system restart).

  8. After the computer is restarted, the scan starts automatically. Follow the on-screen instructions.


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ID del documento: v49964329_EndUserProfile_en_us
Sistema operativo: Windows
Última modificación: 25/07/2018