What are failed_requests.dat Error Messages?

Dynamic Link Library failed_requests.dat Errors

failed_requests.dat is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like failed_requests.dat, are essentially a "guide book" that stores information and instructions for executable (EXE) files - like MpSigStub.exe - to follow. These files were created so that multiple programs (eg. eM Client) could share the same failed_requests.dat file, saving valuable memory allocation, therefore making your computer run more efficiently.

Unfortunately, what makes DLL files so convenient and efficient, also makes them extremely vulnerable to problems. If something happens to a shared DAT file, either it goes missing or gets corrupted in some way, it can generate a "runtime" error message. Runtime is pretty self-explanatory; it means that these errors are triggered when failed_requests.dat is attempted to be loaded either when eM Client is starting up, or in some cases already running. Some of the most common failed_requests.dat errors include:

• Access Violation at address - failed_requests.dat.
• failed_requests.dat could not be found.
• Cannot find C:\Users\Tester\AppData\Local\eM Client\Avatar Cache.ea896464f23044a0be800ea74f8ef8bb\failed_requests.dat.
• Cannot register failed_requests.dat.
• Cannot start eM Client. A required component is missing: failed_requests.dat. Please install eM Client again.
• Failed to load failed_requests.dat.
• The application has failed to start because failed_requests.dat was not found.
• The file failed_requests.dat is missing or corrupt.
• This application failed to start because failed_requests.dat was not found. Re-installing the application may fix this problem.

Your failed_requests.dat file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with eM Client), or deleted by a malware infection. Furthermore, failed_requests.dat file corruption could be caused from a power outage when loading eM Client, system crash while loading failed_requests.dat, bad sectors on your storage media (usually your primary hard drive), or quite commonly, a malware infection. Thus, it's critical to make sure your anti-virus is kept up-to-date and scanning regularly.

How to Fix failed_requests.dat 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 failed_requests.dat 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 failed_requests.dat error, please proceed to the Step 2 below.

You can uninstall eM Client 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 eM Client 7.2.35595 and click "Uninstall"
5. Follow the prompts for uninstallation.

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

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

eM Client 7.2.35595

eM Client

When the first two steps haven't solved your issue, it might be a good idea to run Windows Update. Many failed_requests.dat 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 failed_requests.dat 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 failed_requests.dat 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 failed_requests.dat file version. We maintain a comprehensive database of 100% malware-free failed_requests.dat files for every applicable version of eM Client. 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 failed_requests.dat Files".
2. Click the appropriate "Download Now" button and download your Windows file version.
3. Copy this file to the appropriate eM Client folder location:
   
   Windows 10: C:\Users\Tester\AppData\Local\eM Client\Avatar Cache.ea896464f23044a0be800ea74f8ef8bb\
   
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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