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Windows Terminal's wt.exe throws exception 0xc0000409 when trying to start it from the Run box/Start menu #18685

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opened 2026-01-31 06:21:18 +00:00 by claunia · 0 comments
claunia commented 2026-01-31 06:21:18 +00:00
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Originally created by @rkn45 on GitHub (Oct 14, 2022).

Windows Terminal version

1.15.2712.0

Windows build number

10.0.19044.2130

Other Software

No response

Steps to reproduce

  1. Open Start menu or Run dialog
  2. Type wt
  3. Press Enter

Expected Behavior

Windows Terminal should launch.

Actual Behavior

Nothing happens. Terminal doesn't launch, crashes instantly and silently. New "Application Error" entry for Terminal appears in the event log with ucrtbase.dll as the affected module, throwing error 0xc0000409. XML screenshot of the entry provided below.
Also, when executing wt in the already open system console windows (such as cmd or powershell), Windows Terminal starts correctly.
XML screenshot:
image

Originally created by @rkn45 on GitHub (Oct 14, 2022). ### Windows Terminal version 1.15.2712.0 ### Windows build number 10.0.19044.2130 ### Other Software _No response_ ### Steps to reproduce 1. Open Start menu or Run dialog 2. Type wt 3. Press Enter ### Expected Behavior Windows Terminal should launch. ### Actual Behavior Nothing happens. Terminal doesn't launch, crashes instantly and silently. New "Application Error" entry for Terminal appears in the event log with `ucrtbase.dll` as the affected module, throwing error 0xc0000409. XML screenshot of the entry provided below. Also, when executing wt in the already open system console windows (such as cmd or powershell), Windows Terminal starts correctly. XML screenshot: ![image](https://user-images.githubusercontent.com/37614865/195797127-8d6045a3-dc7b-41fd-9a98-1c69d0d418bc.png)
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Reference: starred/terminal#18685
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