How to Update, Download, and Fix Sfc_lambda.dat

Last Updated: 11/26/2023
[Time to Read Article: 5 minutes]

The development of YS Flight Simulator 20181124 by YSFlight prompted the latest creation of sfc_lambda.dat. It is also known as a Game Data file (file extension DAT), which is classified as a type of Dynamic Link Library (Game Data) file.

sfc_lambda.dat was first released in the Windows 10 Operating System on 12/19/2018 with YS Flight Simulator 20181124. This is not only most recent release from YSFlight, but it's the only version known in existence.

Continue reading below to discover detailed file information, DAT file troubleshooting, and free downloads of several versions of sfc_lambda.dat.

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File Overview


General Information
File Name: sfc_lambda.dat
File Extension: DAT file extension
File Type: Dynamic Link Library
Description: Game Data
User Popularity Rating:
 
Developer and Software Information
Software Program: YS Flight Simulator 20181124
Developer: YSFlight
Software: YS Flight Simulator
Software Version: 20181124
File Details
File Size (Bytes): 135
Oldest File Date: 11/28/2019
Latest File Date: 11/28/2019


What are sfc_lambda.dat Error Messages?


Dynamic Link Library sfc_lambda.dat Errors

sfc_lambda.dat is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like sfc_lambda.dat, are essentially a "guide book" that stores information and instructions for executable (EXE) files - like mighost.exe - to follow. These files were created so that multiple programs (eg. YS Flight Simulator) could share the same sfc_lambda.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 sfc_lambda.dat is attempted to be loaded either when YS Flight Simulator is starting up, or in some cases already running. Some of the most common sfc_lambda.dat errors include:

Your sfc_lambda.dat file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with YS Flight Simulator), or deleted by a malware infection. Furthermore, sfc_lambda.dat file corruption could be caused from a power outage when loading YS Flight Simulator, system crash while loading sfc_lambda.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 sfc_lambda.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 sfc_lambda.dat issue. These troubleshooting steps are listed in the recommended order of execution.


Step 1: Restore your PC back to the latest restore point, "snapshot", or backup image before error occurred.

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 sfc_lambda.dat error, please proceed to the Step 2 below.

Step 2: If recently installed YS Flight Simulator (or related software), uninstall then try reinstalling YS Flight Simulator software.

You can uninstall YS Flight Simulator 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 YS Flight Simulator 20181124 and click "Uninstall"
  5. Follow the prompts for uninstallation.

After the software has been fully uninstalled, restart your PC and reinstall YS Flight Simulator software.

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

YS Flight Simulator 20181124

YSFlight

Step 3: Perform a Windows Update.

When the first two steps haven't solved your issue, it might be a good idea to run Windows Update. Many sfc_lambda.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 sfc_lambda.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 sfc_lambda.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 sfc_lambda.dat file version. We maintain a comprehensive database of 100% malware-free sfc_lambda.dat files for every applicable version of YS Flight Simulator. 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 sfc_lambda.dat Files".
  2. Click the appropriate "Download Now" button and download your Windows file version.
  3. Copy this file to the appropriate YS Flight Simulator folder location:
    Windows 10: C:\YsflightForWindows_R8366\Ysflight\ground\
  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.


GEEK TIP : We must emphasize that reinstalling Windows will be a very time-consuming and advanced task to resolve sfc_lambda.dat problems. To avoid data loss, you must be sure that you have backed-up all of your important documents, pictures, software installers, and other personal data before beginning the process. If you are not currently backing up your data, you need to do so immediately.



Download sfc_lambda.dat Files (Malware-Tested 100% Clean)


CAUTION : We strongly advise against downloading and copying sfc_lambda.dat to your appropriate Windows system directory. YSFlight typically does not release YS Flight Simulator DAT files for download because they are bundled together inside of a software installer. The installer's task is to ensure that all correct verifications have been made before installing and placing sfc_lambda.dat and all other DAT files for YS Flight Simulator. An incorrectly installed DAT file may create system instability and could cause your program or operating system to stop functioning altogether. Proceed with caution.

Windows 10


Files Related to sfc_lambda.dat


DAT Files Related to sfc_lambda.dat

File Name Description Software Program (Version) File Size (bytes) File Location
hg06.dat Game Data YS Flight Simulator 20181124 129 C:\Windows\System32\DriverStore\FileRepository\...
hanger4.dat Game Data YS Flight Simulator 20181124 133 C:\Windows\System32\DriverStore\FileRepository\...
Ecs.dat Game Data YS Flight Simulator 20181124 878 C:\Windows\System32\sru\
SFLCID.dat Game Data YS Flight Simulator 20181124 1644 C:\WINDOWS\Tasks\
windmillblade.dat Game Data YS Flight Simulator 20181124 151 C:\Windows\System32\DriverStore\FileRepository\...

Other Files Related to sfc_lambda.dat

File Name Description Software Program (Version) File Size (bytes) File Location
symbol.ttf TrueType Font YS Flight Simulator 20181124 70128 C:\Program Files\WindowsApps\Microsoft.Office.O...
setupact.log Log YS Flight Simulator 20181124 1304398 C:\Windows\Panther\NewOs\Panther\
setupact.log Log YS Flight Simulator 20181124 16082 C:\Windows\System32\Sysprep\Panther\
setupapi.dev.log Log YS Flight Simulator 20181124 684366 C:\Windows\inf\
api-ms-win-core-sysinf... ApiSet Stub DLL Microsoft® Windows® Operating System (10.0.17134.12) 12136 C:\Users\Tester\AppData\Local\Microsoft\OneDriv...


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