What are mms.cfg Error Messages?

General mms.cfg Runtime Errors

mms.cfg file errors often occur during the startup phase of Adobe Flash Player, but can also occur while the program is running. These types CFG errors are also known as “runtime errors” because they occur while Adobe Flash Player is running. Here are some of the most common mms.cfg runtime errors:

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

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

You can uninstall Adobe Flash Player 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 Adobe Flash Player 32.0.0.255 and click "Uninstall"
5. Follow the prompts for uninstallation.

After the software has been fully uninstalled, restart your PC and reinstall Adobe Flash Player software.

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

Adobe Flash Player 32.0.0.255

Adobe Systems Incorporated

When the first two steps haven't solved your issue, it might be a good idea to run Windows Update. Many mms.cfg 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 mms.cfg 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 mms.cfg 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 mms.cfg file version. We maintain a comprehensive database of 100% malware-free mms.cfg files for every applicable version of Adobe Flash Player. 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 mms.cfg Files".
2. Click the appropriate "Download Now" button and download your Windows file version.
3. Copy this file to the appropriate Adobe Flash Player folder location:
   
   Windows 10: C:\Windows\SysWOW64\Macromed\Flash\
   
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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