What are main.db Error Messages?

General main.db Runtime Errors

main.db file errors often occur during the startup phase of TeraCopy, but can also occur while the program is running. These types DB errors are also known as “runtime errors” because they occur while TeraCopy is running. Here are some of the most common main.db runtime errors:

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

Most DB errors are due to missing or corrupt files. Your main.db file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with TeraCopy), or deleted by a malware infection. Furthermore, main.db file corruption could be caused from a power outage when loading TeraCopy, system crash while loading or saving main.db, 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 main.db 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 main.db 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 main.db error, please proceed to the Step 2 below.

You can uninstall TeraCopy 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 TeraCopy 3.26 and click "Uninstall"
5. Follow the prompts for uninstallation.

After the software has been fully uninstalled, restart your PC and reinstall TeraCopy software.

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

TeraCopy 3.26

Code Sector

When the first two steps haven't solved your issue, it might be a good idea to run Windows Update. Many main.db 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 main.db 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 main.db 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 main.db file version. We maintain a comprehensive database of 100% malware-free main.db files for every applicable version of TeraCopy. 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 main.db Files".
2. Click the appropriate "Download Now" button and download your Windows file version.
3. Copy this file to the appropriate TeraCopy folder location:
   
   Windows 10: C:\Users\Tester\AppData\Roaming\TeraCopy\
   
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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