Zwift on Windows 10 Failing to start after the "Lets Go" Screen

Since the last update, I can no longer get zwift to start on my windows 10 PC. It gets to the “Lets Go” screen and once I press it, i see one screen before zwift shuts down. Any ideas?

Hi @Ian_Stevenson7804 welcome to Zwift forums.

Please see this article to get some background on possible causes. If this issue happened in the past 24 hours, we’d like you to send the crash logs via email to so we can read them for clues.

Here’s how to find your crash logs.

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I seem to have the same issue since today. I have no idea what to do next. I did get some more information, when uninstalling and installing zwift again: In this case I get an error message “the external server returned an error (400). Invalid task” (tranlated from the Dutch message I get)

Try this @Bart_Moutton:

Today I cleared all of my browsers, and this got me going again. Many thanks !