Common Rtvscan.exe Error Messages and Problems

The Rtvscan.exe file belongs to the Norton Antivirus software. In this article, we are going to discuss some common Rtvscan.exe errors and their resolution methods.

Error Message:
Rtvscan.exe - Application Error: The instruction at "0x77fcc8e1" referenced memory at 0x00000000. The memory could not be written or read. Click OK to terminate the program, or cancel to debug the program.

You also see the following entry in the Application log of Windows Event Viewer:

Application log: Event ID: 26 Source
Application Error Description: Application popup RTVSCAN.EXE - Application Error: The instruction at "0x77fcc8e1" referenced memory at 0x00000000. The memory could not be written or read. The location of the instruction may vary, but the referenced memory location is always 0x00000000.

Cause of the Error:
This error occurs, when you do not have DirectX 8.1 or later on your computer.

To resolve this rtvscan.exe error, perform the following tasks:

  1. Confirm the DirectX version on your computer:
    • Open Start menu, select Run, type dxdiag and press Enter.
    • On the System tab of the DirectX Diagnostic Tool dialog box, check the version of your DirectX.
  2. If the DirectX version is 8.1 or later, open each tab on the DirectX Diagnostic Tool dialog box and check its Notes section. If any problems are listed there, resolve them to fix the error.
  3. If you have an older version of DirectX on the PC, run Windows Update. To run Windows Update, open Start menu, select All Programs, and then select Windows Update. This will take you to the Windows Update Web site where you can download and install the required updates on your computer.

Rtvscan.exe causes high CPU usage problem with svchost.exe when Window updates are being installed on the system.

Cause of the Problem:
When Windows Updates are installed several files are loaded in the C:\WINDOWS\SoftwareDistribution folder. Some of these files are zipped, out of which several have nested Zip files within them.

This process causes the Rtvscan.exe file to use high resource allocations while running virus scan. This, in turn, leads to high CPU and memory usage by the svchost.exe file.

To work around this problem, you must configure your Norton Antivirus software to exclude the C:\Windows\SoftwareDistribution from Auto-Protect scanning process. This will bring back the svchost.exe file to its normal operation.

Your Windows system may slow down dramatically when the Rtvscan.exe causes 100 percent CPU usage when it scans the container files that have long file names. When this occurs, your computer may freeze up and stop responding.

This is a known problem and has been fixed in Symantec AntiVirus 10.0.1 and Symantec Client Security 3.0.1. You can download the new build from the Symantec web site and follow the specific instructions provided on the Web site to upgrade your Norton Antivirus software.

Error Message:
Rtvscan.exe - Application Error - The Instruction at "0x77600f57" referenced memory at "0x69584d3c". The memory could not be "read".

This error message is usually displayed when your system is shutting down and you have Symantec AntiVirus 10.x or Symantec Client Security 3.x installed on your computer.

This is a known problem, and Symantec has fixed this issue in Maintenance Patch 1 for Maintenance Release 6 of Symantec Client 3.1 and Symantec Antivirus 10.1. Simply stated, you can apply the patch on Symantec AntiVirus 10.1.6.x or Symantec Client Security 3.1.6.x versions. You can download and get information on how to apply this patch on the Symantec Web site.