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Cannot install Windows Terminal without Windows Defender Firewall #19184

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opened 2026-01-31 06:36:12 +00:00 by claunia · 0 comments
claunia commented 2026-01-31 06:36:12 +00:00
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Originally created by @SimonCahill on GitHub (Jan 6, 2023).

Windows Terminal version

1.15.3465.0_x64

Windows build number

10.0.19044.0

Other Software

Windows Defender
Appx Installer

Steps to reproduce

  1. Double-click Microsoft.WindowsTerminal*.msixbundle with Windows Defender [Firewall] disabled/unavailable.
  2. Wait for installer to reach 88 mph %
  3. Profit? Receive the error in the actual behaviour section.

Expected Behavior

I expect the installer to not require a firewall; or even if it does to have a fallback handler.
Unless some vital component of the operating system is missing (like the UI libraries or something), the application should install.

Instead, unzipping the .msixbundles and executing the Terminal application itself works. So this is an installer bug!

I realise this is (yet another) Windows issue and is only marginally related to Windows Terminal, but maybe you guys have a brainwave I haven't had yet and know a way around this.

Actual Behavior

The application doesn't install, but instead the installer errors out with the following messages:

German Error Msg (sorry, can't help that the IT did this):

App installation failed with error message: Fehler 0x80073D0A:
Fehler beim Installieren des Pakets "Microsoft.WindowsTerminal_1.15.3465.0_x64__8wekyb3d8bbwe",
da der Firewalldienst nicht ausgeführt wird. Stellen Sie sicher, dass der Firewalldienst aktiviert und gestartet ist. (0x80073d0a)

English Error Translation:

App installation failed with error message: Error 0x80073D0A:
Error installing the package "Microsoft.WindowsTerminal.1.15.3465.0_x64__8wekyb3d8bbwe",
because the firewall service is not running. Ensure the firewall service is active and running. (0x80073d0a)

Unpacking the .msixbundles and calling the application directly works!

Originally created by @SimonCahill on GitHub (Jan 6, 2023). ### Windows Terminal version 1.15.3465.0_x64 ### Windows build number 10.0.19044.0 ### Other Software Windows Defender Appx Installer ### Steps to reproduce 1. Double-click Microsoft.WindowsTerminal*.msixbundle with Windows Defender [Firewall] disabled/unavailable. 2. Wait for installer to reach 88 ~mph~ % 3. ~Profit?~ Receive the error in the *actual behaviour* section. ### Expected Behavior I expect the installer to not require a firewall; or even if it does to have a fallback handler. Unless some vital component of the operating system is missing (like the UI libraries or something), the application **should** install. Instead, unzipping the .msixbundles and executing the Terminal application itself works. So this is an installer bug! I realise this is (yet another) Windows issue and is only marginally related to Windows Terminal, but maybe you guys have a brainwave I haven't had yet and know a way around this. ### Actual Behavior The application doesn't install, but instead the installer errors out with the following messages: ## German Error Msg (sorry, can't help that the IT did this): ``` App installation failed with error message: Fehler 0x80073D0A: Fehler beim Installieren des Pakets "Microsoft.WindowsTerminal_1.15.3465.0_x64__8wekyb3d8bbwe", da der Firewalldienst nicht ausgeführt wird. Stellen Sie sicher, dass der Firewalldienst aktiviert und gestartet ist. (0x80073d0a) ``` ## English Error Translation: ``` App installation failed with error message: Error 0x80073D0A: Error installing the package "Microsoft.WindowsTerminal.1.15.3465.0_x64__8wekyb3d8bbwe", because the firewall service is not running. Ensure the firewall service is active and running. (0x80073d0a) ``` Unpacking the .msixbundles and calling the application directly **works**!
claunia added the Resolution-By-DesignNeeds-TriageIssue-BugResolution-External labels 2026-01-31 06:36:12 +00:00
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Reference: starred/terminal#19184
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