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Due to an increase in workload, and a change in our working practices due to Covid-19; we are having to prioritise help tickets that are preventing users from playing our games. Whilst we aim to address every ticket in the order received, this may mean some tickets receive a reply outside of the response time below. We apologise for this inconvenience and thank you for your patience and understanding.


This is the Frontier Developments Customer Support site.

I get a validation error when downloading or updating Elite Dangerous using the launcher

Updated: Tuesday 11th December 2018

If you find that the launcher is unable to download the game fully, or you see "Update failed for file... (validation error)" when updating the game. You may need to clear the temporary files that the launcher stores to continue downloading normally.

Remove the launcher's temporary download files 

The launcher stores its current file download in  .part or .progress files, deleting these can help refresh the download: image
  • Close the Elite Dangerous launcher.
  • Locate your game's installation folder by checking this FAQ.
  • To easily locate all these files, search the folder for files ending in .part or .progress.
  • Remove all files that end in .part or .progress.
  • Start the Elite Dangerous launcher as normal.  

Try clearing Windows' cached download files

In some cases, you may need to clear the cached files for Microsoft's .NET. framework: 

  • Close the Elite Dangerous launcher.
  • Go to the Windows Start Menu and type Internet Options.
  • Open the Internet Options dialogue.
  • On the General tab, under Browsing History, click Delete...
  • Tick Temporary Internet files and website files and Cookies and website data
  • Click Delete.
  • Start the Elite Dangerous launcher as normal.

I'm still having problems, can I download the game a different way?

Yes! If you continue to encounter problems when downloading the game via our launcher, you may wish to install the game via  Steam instead. Adding the game to Steam is free and you can find out how to add Elite Dangerous to Steam here.

I can't use Steam, what else can I try?

Should this error persist and the above steps haven't been able to help, please click Contact Us at the top of this page to create a ticket with the support team. To help the support team solve your problem, please include your Client.log and Update.log files as shown in this FAQ article.

Do you need additional support on your issue?

Yes, Open a Ticket

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