Thus, it comes as no surprise that many Windows users have reported encountering the Norton error 8504 issue, where Norton randomly crashes out of the blue.
- If Norton Error 8504 occurs, it’s most likely your antivirus that is malfunctioning.
- You can fix the 8504 error by running the Windows Standalone System Sweeper tool.
- Another useful solution would be to uninstall Norton and install it again.
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Run Command prompt
-
Open Run by pressing the Windows key + R hotkey.
Input cmd in the Open text box.
Then, right-click Command prompt and select Run as administrator. - Enter the following command and press Return: netsh winsock reset
Run SFC scan
- Open Run’s window with the Windows key + R hotkey.
- Input sfc /scannow in Run and press the Return key.
- The SFC scan might run for a while.
- Restart Windows if the SFC scan finds any files that need to be fixed.
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Change application permissions
- Press Windows + R to open Run, type appwiz.cpl in the text field, and hit Enter.
- Locate Norton Antivirus (or Norton Security), right-click on it, and choose Properties from the menu.
- Select the Compatibility tab, and set the Run this program as an administrator option to Yes.
- Click Apply and OK to save the changes.
Restart Norton
- Restarting Norton can sometimes fix the Error 8504:
- Follow the steps below to restart Norton Antivirus:
Go to Start > click on Norton > then click on the icon for Norton Antivirus.
- Click on Start > click on All Programs > click on the Norton Antivirus icon.
- Click on End Task.
- Now, click on Restart Now.
- Restarting Windows
- Restarting Windows can fix Error 8504:
- Restarting Windows can fix Error 8504:
- Restarting the computer will fix Error 8504:
Run the Norton cleanup tool
- Run the Norton cleanup tool. To do so, press the Windows key + S hotkey.
- Enter †̃Norton’ in the search utility’s text box.
- Click Norton in the search results.
- Click the Check Now button in the dialog box below.
- Then, click the Run button in the prompt window.
- Select the Norton Cleanup tool.
- Click the Yes button when the Users Access Control window pops up.
- Finally, press the Scan Now button to scan for the software’s files.
- Restart Windows after Norton’s cleanup tool has finished scanning.
Disable Windows Firewall
- Press Windows + R, type firewall in the text field, and hit Enter.
- Select Allow an app or feature through Windows Firewall.
- In the Trusted apps section, select Norton Security.
- Make sure the Private option is selected under the Port section.
- Finally, click the Save changes button to save the changes.
