What are toc.inc Error Messages?

General toc.inc Runtime Errors

toc.inc file errors often occur during the startup phase of LAN Speed Test, but can also occur while the program is running. These types INC errors are also known as “runtime errors” because they occur while LAN Speed Test is running. Here are some of the most common toc.inc runtime errors:

• toc.inc could not be found.
• toc.inc error.
• toc.inc failed to load.
• Error loading toc.inc.
• Failed to register toc.inc / Cannot register toc.inc.
• Runtime Error - toc.inc.
• The file toc.inc is missing or corrupt.

Most INC errors are due to missing or corrupt files. Your toc.inc file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with LAN Speed Test), or deleted by a malware infection. Furthermore, toc.inc file corruption could be caused from a power outage when loading LAN Speed Test, system crash while loading or saving toc.inc, bad sectors on your storage media (usually your primary hard drive), or malware infection. Thus, it’s critical to make sure your anti-virus is kept up-to-date and scanning regularly.

How to Fix toc.inc Errors in 3 Steps (Time to complete: ~5-15 minutes)

If you're encountering one of the error messages above, follow these troubleshooting steps to resolve your toc.inc issue. These troubleshooting steps are listed in the recommended order of execution.

To begin System Restore (Windows XP, Vista, 7, 8, and 10):

1. Hit the Windows Start button
2. When you see the search box, type "System Restore" and press "ENTER".
3. In the search results, find and click System Restore.
4. Please enter the administrator password (if applicable / prompted).
5. Follow the steps in the System Restore Wizard to choose a relevant restore point.
6. Restore your computer to that backup image.

If the Step 1 fails to resolve the toc.inc error, please proceed to the Step 2 below.

You can uninstall LAN Speed Test software by following these instructions (Windows XP, Vista, 7, 8, and 10):

1. Hit the Windows Start button
2. In the search box, type "Uninstall" and press "ENTER".
3. In the search results, find and click "Add or Remove Programs"
4. Find the entry for LAN Speed Test 4.3.1 and click "Uninstall"
5. Follow the prompts for uninstallation.

After the software has been fully uninstalled, restart your PC and reinstall LAN Speed Test software.

If this Step 2 fails as well, please proceed to the Step 3 below.

LAN Speed Test 4.3.1

Totusoft

When the first two steps haven't solved your issue, it might be a good idea to run Windows Update. Many toc.inc error messages that are encountered can be contributed to an outdated Windows Operating System. To run Windows Update, please follow these easy steps:

1. Hit the Windows Start button
2. In the search box, type "Update" and press "ENTER".
3. In the Windows Update dialog box, click "Check for Updates" (or similar button depending on your Windows version)
4. If updates are available for download, click "Install Updates".
5. After the update is completed, restart your PC.

If Windows Update failed to resolve the toc.inc error message, please proceed to next step. Please note that this final step is recommended for advanced PC users only.

If Those Steps Fail: Download and Replace Your toc.inc File (Caution: Advanced)

If none of the previous three troubleshooting steps have resolved your issue, you can try a more aggressive approach (Note: Not recommended for amateur PC users) by downloading and replacing your appropriate toc.inc file version. We maintain a comprehensive database of 100% malware-free toc.inc files for every applicable version of LAN Speed Test. Please follow the steps below to download and properly replace you file:

1. Locate your Windows operating system version in the list of below "Download toc.inc Files".
2. Click the appropriate "Download Now" button and download your Windows file version.
3. Copy this file to the appropriate LAN Speed Test folder location:
   
   Windows 10: C:\Program Files (x86)\LAN Speed Test v4\Help\
   
4. Restart your computer.

If this final step has failed and you're still encountering the error, you're only remaining option is to do a clean installation of Windows 10.

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