Surface 7Pro Win10 Can’t start camera 0xa00f429e <pageopenfailed> also <windowshowfailed>(0x8007007f)

Windows Camera still fails on my Surface Pro 7 running Windows 10 with:

0xA00F429E <PageOpenFailed> (0x8007007F)

Installed Camera version: 2026.2607.1.0.

Both front and rear cameras work in Teams, Zoom, and other camera apps. Windows Camera opens with a blue background, turns black, then displays the error.

Troubleshooting so far:

Uninstalled and reinstalled Windows Camera: same error.

Tested in a new local account, CameraTest: same error.

Tested with a clean boot: same error.

Ran DISM and SFC, although I did not save their final results.

Ran the matching Surface Pro 7 Windows 10 MSI, but it offered to remove update 25.090.3497.0, suggesting that package was already installed. I cancelled rather than remove it.

Checked Device Manager with hidden devices shown: no identifiable third-party virtual camera. Zoom lists only the built-in front and rear cameras.

Checked the Application event log: no matching Windows Camera crash entry found. SurfaceOemPanel event 513 had no diagnostic details.

Before I perform an in-place Windows repair, can you confirm whether Camera version 2026.2607.1.0 has a known Windows 10 compatibility issue? Is there a Microsoft-supported way to test an older Camera version or repair its dependencies first? Would an in-place repair address this if reinstalling from the Store installs the same Camera version?

Windows Camera still fails on my Surface Pro 7 running Windows 10 with:

0xA00F429E <PageOpenFailed> (0x8007007F)

Installed Camera version: 2026.2607.1.0.

Both front and rear cameras work in Teams, Zoom, and other camera apps. Windows Camera opens with a blue background, turns black, then displays the error.

Troubleshooting so far:

Uninstalled and reinstalled Windows Camera: same error.

Tested in a new local account, CameraTest: same error.

Tested with a clean boot: same error.

Ran DISM and SFC, although I did not save their final results.

Ran the matching Surface Pro 7 Windows 10 MSI, but it offered to remove update 25.090.3497.0, suggesting that package was already installed. I cancelled rather than remove it.

Checked Device Manager with hidden devices shown: no identifiable third-party virtual camera. Zoom lists only the built-in front and rear cameras.

Checked the Application event log: no matching Windows Camera crash entry found. SurfaceOemPanel event 513 had no diagnostic details.

Before I perform an in-place Windows repair, can you confirm whether Camera version 2026.2607.1.0 has a known Windows 10 compatibility issue? Is there a Microsoft-supported way to test an older Camera version or repair its dependencies first? Would an in-place repair address this if reinstalling from the Store installs the same Camera version?

0x8007007f is ERROR_PROC_NOT_FOUND (“the specified procedure could not be found”). Some DLL in the Camera app’s pipeline is calling a function that the copy of the DLL actually loaded doesn’t have. This is a component or version mismatch, not a permissions, privacy, or hardware problem. Zoom, Teams, and other Store camera apps still work because they use different capture paths than the Camera app plus Windows Camera Frame Server.

Open Device Manager, choose View > Show hidden devices and check Cameras, Imaging devices, and Software devices for entries that aren’t the Surface cameras. Uninstall any virtual camera software, then reboot.

In Start > Run > Regedit > OK

Now locate these keys for entries that aren’t your real cameras (back up first):

HKLM\SOFTWARE\Classes\CLSID{860BB310-5D01-11d0-BD3B-00A0C911CE86}\Instance

HKLM\SOFTWARE\WOW6432Node\Classes\CLSID{860BB310-5D01-11d0-BD3B-00A0C911CE86}\Instance

Open Command Prompt as Admin and run these 2 commands one after another:

DISM /Online /Cleanup-Image /RestoreHealth

sfc /scannow

In elevated PowerShell:

Get-AppxPackage -AllUsers Microsoft.WindowsCamera | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}

Get-AppxPackage -AllUsers VCLibs | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}

Get-AppxPackage -AllUsers NET.Native | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}

Create a new User Account and check there.

Please note that Windows 10 reached the end of support on October 14, 2025. This may limit the availability of future fixes or official support for issues affecting Windows 10.

Hello Howie,

Since the usual Camera troubleshooting has already been tried, the next step is to determine whether the issue is tied to the current Windows profile, the Surface drivers, or Windows system files.

First, try signing in to a newly created local Windows account and opening the Camera app there. This can help determine whether the problem is limited to the current Windows profile.

If Camera also does not work in the new account, manually install the official Surface Pro 7 driver and firmware package from Microsoft. Make sure you select the package for Surface Pro 7, not Surface Pro 7+, and choose the .msi file that matches the installed Windows version and build. Restart the device afterward and test the Camera app again. Use the official Download drivers and firmware for Surface page.

If the issue continues, check Windows for damaged system components:

1. Search for Command Prompt, right-click it, and select Run as administrator.
2. Run the following command and wait for it to finish: DISM.exe /Online /Cleanup-Image /RestoreHealth
3. Then run: sfc /scannow
4. Allow the verification to reach 100%, restart the Surface, and test the Camera app again.

If that doesn't help, consider performing an in-place repair installation of Windows 10 by following this Microsoft guide: Reinstall Windows with the installation media.

Create or download the Windows 10 installation media, open it from within Windows, and run setup.exe. When prompted, select the option to keep personal files and apps. This reinstalls Windows while preserving personal files, settings, and installed applications.

Before proceeding, back up important files and keep the Surface connected to power. Start setup.exe from within Windows rather than booting from the installation USB, as booting from the USB may lead to a clean installation.

Did windows update and drivers, ran all kinds of diagnostics and still not working