Repair Navapw32.exe Error

Navapw32.exe or Norton AutoProtect belongs to the Symantec Corporation Norton Antivirus software. Navapw32.exe runs at Startup and is a part of the Norton background scanning process. This program is compatible with the Windows 98, Windows ME, Windows NT, Windows 2000, Windows XP, and Windows 2003 operating system.

File Information

Navapw32.exe is by default located in the C:\Program Files folder. The file has known file sizes of 75384, 74832 and 25600 bytes on Windows XP. When the program runs, an icon for the program is displayed in the system tray on the taskbar.

Navapw32.exe Error and Resolution

You may see the following error messages at system startup:

“Unable to determine the location of the configuration files.”


"NAVAPW32.EXE caused an invalid page fault in module APWCMD.DLL."

Cause of the Error

These errors are usually caused by damaged or missing virus definition files. However, the causes are varied and not limited to the issue regarding virus definition files.

How to Fix the Error

To fix this error, you need to perform the following steps:

  • Uninstall all Symantec programs that use virus definitions.
  • Delete the Virus Definitions folder VirusDefs
  • Remove the registry key for SharedDefs.
  • Reinstall previously uninstalled Symantec programs.
  • Run LiveUpdate.

Let us now go through each step in detail.

Step 1: Uninstall all Symantec programs that use virus definitions.

Open Add or Remove Programs from the Control Panel and then uninstall the following Norton programs-all these use the Symantec virus definitions folder:

  • Norton Internet Security
  • Norton SystemWorks
  • Norton AntiVirus
  • Symantec AntiVirus for Palm OS
  • PcAnywhere

If after restarting you still have the virus definitions folder, you will have to remove it manually. It is also recommended that you use a reliable registry tool, such as RegServe to scan and remove any left behind Symantec registry entries.

Step 2: Delete the Virus Definitions folder VirusDefs

Virus definitions, by default, are located in the C:\Program Files\Common Files\Symantec Shared\VirusDefs folder. Do the following to delete the folder on Windows XP:

  1. Click Start and select Search.
  2. Type in virusdefs in the All or Part of the File Name folder.
  3. In the Look in: box select Local hard drives.
  4. Select the Search system files and folders and System subfolders checkboxes.
  5. Click Search and wait for the results to display.
  6. Right-click the \VirusDefs folder.
  7. Click Delete and then click Yes to confirm your decision.

Steps for Windows 95, Windows 98, Windows NT and Windows 2000 operating system are similar. Terms may vary but the procedure itself remains the same.

Step 3: Remove the registry key for SharedDefs.

Warning: Always create a backup of your registry prior to making any edits to it. There is always a risk involved in editing your registry. Any change you make is irreversible if you have no backup in place. You can create registry backup by using the Registry Editor tool or a reliable third-party registry tool, such as RegServe.

  1. Click Start, select Run, type regedit and then press Enter. and go to Run.
  2. Navigate to HKEY_LOCAL_MACHINE\Software\Symantec\SharedDefs and delete it.
  3. Exit the Registry Editor and restart your PC to enable the changes to take effect.

Step 4: Reinstall Symantec programs

Reinstall the Symantec programs you?uninstalled earlier and restart your system whenever prompted.

If you have downloaded the installation files, ensure that there are no problems with the downloaded sources. Also, if you are installing from a CD or DVD ensure that the disk is not scratched or damaged in any other way.

Step 5: Run LiveUpdate once reinstallation of programs is complete.

Start your product and then use the LiveUpdate feature to download and install updates on your PC. Restart the system whenever prompted.

Let LiveUpdate run until all updates are installed.

Virus definitions are constantly being updated or modified. You should always keep your virus definitions for your Symantec products updated. You may download the files if you are unable to run LiveUpdate. These virus definitions are available for download at Symantec Security Response web site.