What happened?
Environment:
Windows 11 Home
WebView2 Runtime: Latest Evergreen
VS Code (System Installer): Latest stable
Problem:
WebView2 fails to initialize when hosted inside Visual Studio Code. As a result:
- Markdown preview context menu is crippled (Cut/Copy/Paste only)
- Printing is impossible
- WebView2 detection inside VS Code returns
false
Diagnostic test inside VS Code Developer Tools:
document.documentElement.outerHTML.includes("ms-webview")
Result: false
Troubleshooting performed (none resolved the issue):
- Full uninstall of VS Code
- Removal of all AppContainer sandbox folders under AppData\Local\Packages
- Removal of VS Code aliases under WindowsApps
- Reinstall of VS Code System Installer
- Reset integrity level of VS Code installation folder
- Verified UAC slider at top position
- Verified registry ConsentPromptBehaviorAdmin = 2
- Full cold boot (Shift + Shut down)
- Relaunch VS Code
- WebView2 still fails to initialize
Expected behavior:
WebView2 should initialize normally inside the host application so that printing and full preview functionality work.
Actual behavior:
WebView2 never initializes. VS Code remains in a degraded mode with no printing support.
Impact:
This issue has consumed multiple days of troubleshooting. VS Code becomes significantly less useful without WebView2 functionality. This appears to be a WebView2 initialization failure triggered by Windows integrity/UAC interactions.
Importance
Blocking. My app's basic functions are not working due to this issue.
Runtime Channel
Stable release (WebView2 Runtime)
Runtime Version
idk
SDK Version
idk
Framework
Other
Operating System
Windows 11
OS Version
Windows 11 Home V 25H2 OS Build 26200.8655
Repro steps
With AI help, was never successful to configure the software to allow assigning a printer.
These are Microsoft products. They should easily work together w/o day of unsuccessful toiling.
Repros in Edge Browser
No, issue does not reproduce in the corresponding Edge version
Regression
No, this never worked
Last working version (if regression)
No response
What happened?
Environment:
Windows 11 Home
WebView2 Runtime: Latest Evergreen
VS Code (System Installer): Latest stable
Problem:
WebView2 fails to initialize when hosted inside Visual Studio Code. As a result:
falseDiagnostic test inside VS Code Developer Tools:
document.documentElement.outerHTML.includes("ms-webview")
Result: false
Troubleshooting performed (none resolved the issue):
Expected behavior:
WebView2 should initialize normally inside the host application so that printing and full preview functionality work.
Actual behavior:
WebView2 never initializes. VS Code remains in a degraded mode with no printing support.
Impact:
This issue has consumed multiple days of troubleshooting. VS Code becomes significantly less useful without WebView2 functionality. This appears to be a WebView2 initialization failure triggered by Windows integrity/UAC interactions.
Importance
Blocking. My app's basic functions are not working due to this issue.
Runtime Channel
Stable release (WebView2 Runtime)
Runtime Version
idk
SDK Version
idk
Framework
Other
Operating System
Windows 11
OS Version
Windows 11 Home V 25H2 OS Build 26200.8655
Repro steps
With AI help, was never successful to configure the software to allow assigning a printer.
These are Microsoft products. They should easily work together w/o day of unsuccessful toiling.
Repros in Edge Browser
No, issue does not reproduce in the corresponding Edge version
Regression
No, this never worked
Last working version (if regression)
No response