What are default.policy Error Messages?

General default.policy Runtime Errors

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

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

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

You can uninstall NetBeans 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 NetBeans 9 and click "Uninstall"
5. Follow the prompts for uninstallation.

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

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

NetBeans 9

Sun Microsystems

When the first two steps haven't solved your issue, it might be a good idea to run Windows Update. Many default.policy 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 default.policy 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 default.policy 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 default.policy file version. We maintain a comprehensive database of 100% malware-free default.policy files for every applicable version of NetBeans. 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 default.policy Files".
2. Click the appropriate "Download Now" button and download your Windows file version.
3. Copy this file to the appropriate NetBeans folder location:
   
   Windows 10: C:\Program Files\Java\jdk-12\lib\security\
   Windows 10: C:\Program Files\Common Files\Adobe\Adobe Animate CC 2019\jre\lib\security\
   Windows 10: C:\Program Files\Java\jdk-13.0.2\lib\security\
   
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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