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Fix Mass Effect Legendary Edition Not Launching On PC

Here's everything you can do to fix the Mass Effect LE not starting or launching issue on PC.

Getting into the Mass Effect series for the first time or all over again? The LE is an amazing remaster that is a must-play. But if you come across the dreaded Mass Effect Legendary Edition not launching error on PC, it can get quite frustrating. Fear not – here are a few troubleshooting tips you can follow to fix this problem so that you can start playing immediately.

How to Fix Mass Effect Legendary Edition Not Launching Error?


mass effect le not starting crashing

Here are the things you should be doing to resolve the Mass Effect LE not starting or launching issue.

  • Restart your PC.
  • Update your Graphics drivers.
  • Verify the Game Files via Steam and Origin.
  • Clean the Origin Cache.
  • Disable the Antivirus and Firewall temporarily or give necessary permissions.


How to Update Graphics Drivers?

For Graphics Drivers, you need to head to the official site of the manufacturer and download the latest files. After that, relaunch the game and check if it launches without issues.

How to Verify Game Files on Steam and Origin?


To verify the game file integrity on Steam and Origin, follow these steps:


  • Launch the Steam client.
  • Find Mass Effect LE in your library.
  • Right-click on it and click on Properties.
  • Click on Local files.
  • Click on Verify integrity of game files.
  • Wait until the verification process is over.
  • Re-launch the game to see if the error persists.



  • Launch the Origin client.
  • Click on My Game Library.
  • Find Mass Effect LE.
  • Right-click on it.
  • Click on Repair.
  • Then the process of file verification will begin.
  • After it’s done, relaunch the game.

How to Clear Origin Cache?

  • Close Origin if it’s running already. End tasks and close all Origin processes first.
  • Press Windows key + R.
  • Type %ProgramData%/Origin
  • Click on OK.
  • Delete all files EXCEPT LocalContent.
  • Press Windows key + R.
  • In the Roaming folder and delete the Origin folder.
  • Then click on AppData in the address bar > Local folder > Delete the Origin folder there.
  • Restart your PC.
  • Login to Origin.
  • Launch the game.

Solution on EA.com

If none of the aforementioned steps work, try this solution posted by Holger1405 on EA’s forum. This seems to have worked for some players. I am adding the exact steps below.

  • Hit Windows key and X.
  • Choose either “PowerShell (Administrator)” or “Command prompt (Administrator),” whichever option is offered.
  • Inside the PowerShell or CMD, enter “DISM.exe /Online /Cleanup-image /Checkhealth” without quotes. > ENTER.
  • If errors are found, notify us. If no errors were found repeat steps 1 & 2.
  • Inside the PowerShell or CMD, enter “DISM.exe /Online /Cleanup-image /Restorehealth” without quotes. > ENTER.
  • The system will start validating soon. If it throws an error, please list it here.
  • After it reaches 100%, hit Windows key and X again.
  • Again, choose “PowerShell (Administrator)” or “Command Prompt (Administrator)”
  • Inside the PowerShell or CMD, enter “sfc /scannow” without quotes. >ENTER.
  • Post the message you receive at the end of the process here.
  • Then: Restart your system.
  • Uninstall Origin.
  • Download this version of the “OriginSetup.exe”
  • Run the installer as Administrator (Right-click the “OriginSetup.exe” > Run as an Administrator) > Test.

So, there you have it! With that out of the way, take a look at more of our Mass Effect LE guides that will help you in this memorable journey.