[BUG]: "failed to run extension ... not a valid Win32 app"

[orhirshfeld-elbit]

What happened?

What did you do? What happened? What did you expect to happen?

Just Installed Github CLI and Co-pilot on Win11 Powershell and I have similar issue to what already repoterd beofre in issues #6 and #149

#6

#149

I tired following suggestions to upgarde and reinstall but got the same reuslts

System info:
Processor Intel(R) Core(TM) Ultra 7 165U 2.10 GHz
System type 64-bit operating system, x64-based processor
Edition Windows 11 Enterprise
Version 24H2
OS build 26100.4351

@andyfeller @BW404 @babakks

Versions

gh version 2.78.0 (2025-08-21)

Relevant terminal output

❯ gh copilot suggest "Install and configure git lfs"
failed to run extension: fork/exec C:\Users\e054310\AppData\Local\GitHub CLI\extensions\gh-copilot\gh-copilot.exe: %1 is not a valid Win32 application.

❯ [System.Environment]::OSVersion

Platform ServicePack Version      VersionString
-------- ----------- -------      -------------
 Win32NT             10.0.26100.0 Microsoft Windows NT 10.0.26100.0

❯ gh --version
gh version 2.78.0 (2025-08-21)
https://github.com/cli/cli/releases/tag/v2.78.0

❯ winget install --id GitHub.cli
Found an existing package already installed. Trying to upgrade the installed package...
No available upgrade found.
No newer package versions are available from the configured sources.