How to Fix Fix Error 0x80073D0A — Store App Deployment Blocked by Firewall on Windows
Getting error 0x80073D0A when installing Store apps? App deployment blocked by Windows Firewall? Microsoft Store installation fails with firewall error? Sideloaded app blocked? Fix this Store app firewall deployment error.
Symptoms
You might be experiencing this problem if you notice:
- •Microsoft Store app installation fails with 0x80073D0A
- •Sideloaded .appx or .msix packages fail with firewall error
- •Error message references Windows Firewall blocking deployment
- •Apps install for admin but fail for standard users
- •Developer mode app deployment rejected
- •PowerShell Add-AppxPackage fails with this error
Common Causes
- ⚠Windows Firewall blocking app package deployment
- ⚠Firewall rules preventing loopback connections needed for deployment
- ⚠Third-party firewall interfering with app installation
- ⚠Windows Defender Firewall service not running
- ⚠Firewall profile (Domain/Private/Public) blocking app traffic
- ⚠AppContainer loopback exemption missing
Solutions
Solution 1: Fix Windows Firewall for App Deployment
- 1Ensure Windows Firewall service is running:
- 2services.msc → Windows Defender Firewall → Automatic → Start
- 3Also: Base Filtering Engine → Automatic → Start
- 4Temporarily test with firewall disabled:
- 5Control Panel → Windows Defender Firewall
- 6→ Turn Windows Defender Firewall on or off
- 7Turn off for Private network temporarily
- 8Try installing the app
- 9If it works: firewall rule is blocking deployment
- 10Re-enable firewall immediately after testing
- 11Add proper exception:
- 12Windows Defender Firewall → Advanced settings
- 13Inbound Rules → check for any blocking Microsoft Store
Solution 2: Enable App Deployment Loopback
- 1Store apps need loopback access during installation:
- 2PowerShell as Admin:
- 3CheckNetIsolation LoopbackExempt -a -n="microsoft.windowsstore_8wekyb3d8bbwe"
- 4For developer deployments:
- 5CheckNetIsolation LoopbackExempt -a -n="your.app.package.name"
- 6To see current exemptions:
- 7CheckNetIsolation LoopbackExempt -s
- 8If using third-party firewall (Norton, Kaspersky, etc.):
- 9Temporarily disable it completely
- 10Try the installation
- 11If successful: add an exception rule in that firewall
- 12Each firewall has different UI — check vendor documentation
Solution 3: Reset Firewall and Reinstall App Platform
- 1If firewall configuration is corrupted:
- 2CMD as Admin:
- 3netsh advfirewall reset
- 4This resets firewall to default rules — all custom rules lost!
- 5Restart PC
- 6Retry app installation
- 7If still failing — reset the app platform:
- 8PowerShell as Admin:
- 9Get-AppxPackage Microsoft.WindowsStore | Remove-AppxPackage
- 10Get-AppxPackage -AllUsers Microsoft.WindowsStore | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}
- 11Also reset Store cache:
- 12Win+R → wsreset.exe → Enter
- 13Wait for Store to open → retry app installation
FIXES THIS IN 5 MINUTES
Fix Fix Error 0x80073D0A — Store App Deployment Blocked by Firewall Automatically
RescuePC Toolkit includes 109+ automated repairs that fix this problem with one click. No command line knowledge required.
Download Now - Free TrialNo credit card required • Works on Windows 10 & 11