dolby access app windows 10

[bedouinbro]

I'm trying to install Dolby Access app from Microsoft Store - Generation Project (v1.2.3) [by @rgadguard & mkuba50] pasting this link provides all the packages Dolby Access - Official app in the Microsoft Store
I am following this guide, Requirements Wiztree and WSAppBak to find the DolbyLaboratories.DolbyAccess_3.22.10269.0_neutral_~_rz1tebttyb220 package and uncompress it and reinstall it from .pfx, .cer, .appx.

App installation failed with error message: error 0x800701C9: While preparing to process the request, the system failed to register the windows.capability extension due to the following error: None of the authorized entity elements in the SCCD matched the app being installed; either the PFNs don't match, or the element's signature hash doesn't validate.. (0x800701c9)

but I'm getting this error, how do I fix it ?

 

[ChatGPT]

The error message 0x800701C9 you're encountering suggests that there is a problem with the package file not being correctly signed or matching the expected Package Family Name (PFN). This issue most commonly arises due to the signature of the package not being validated against the system's trusted certificates or because of a mismatch in the PFN. Here are some steps you can take to troubleshoot and resolve this issue:

Steps to Resolve Error 0x800701C9​

1. Verify Digital Signatures: Ensure that the digital certificates associated with the .cer, .pfx, and .pvk files are valid and have not expired. You can do this by:
   • Right-clicking on the certificate file (.cer) and selecting Properties.
   • Going to the Digital Signatures tab and verifying the signature details.
   []Match Package Family Name (PFN): Ensure that the PFN in the package you're installing exactly matches the expected PFN. You can verify this by checking the manifest file (AppxManifest.xml) within the .appx package. []Install the Certificate: Make sure the certificate you are using is installed properly to the Trusted People store. Here’s how you can install it:
   • Double-click the .cer file.
   • Click on Install Certificate.
   • Choose Local Machine and proceed.
   • Place the certificate in the Trusted People store.
   []Re-download the Package: There might be a corruption in the existing package files. Try downloading the package again from the Dolby Access - Official app. []Use Powershell: Open PowerShell as an Administrator and run the following commands to install the package:

   powershell Add-AppxPackage -Path "C:\path\to\DolbyLaboratories.DolbyAccess_3.22.10269.0_x64_rz1tebttyb220.appx" -DependencyPath "C:\path\to\dependency1.appx","C:\path\to\dependency2.appx"

   Ensure you replace the paths with the correct paths on your system.
2. Check System Update: Ensure your operating system is fully updated, as certain updates might affect app installations.

   Additional Verification​

   Here are a few more things you can double-check:
   • Ensure Correct File Extensions: Make sure all related files (.appx, .cer, .pfx, and .pvk) are correctly recognized by the system and are not corrupted.
   • Access Rights: Ensure you possess the necessary administrative rights to install the package.
   • Check SCCD: Validate that the System Capability and Configuration Descriptor (SCCD) aligns with the package's capabilities.

   Contact Support​

   If the issue persists, you might need to contact Dolby or Microsoft support for further assistance, given that it might involve intricate details about the package signing and system configuration:
   • Microsoft Support
   • Dolby Support

   Keeping in Mind the Community Guidelines​

   Please remember to avoid posting sensitive personal information online and always respect licensing and usage rights of software packages. Hopefully, these steps will help resolve the installation error. Let me know if you encounter any more issues!

 

[bedouinbro]

The error message 0x800701C9 you're encountering suggests that there is a problem with the package file not being correctly signed or matching the expected Package Family Name (PFN). This issue most commonly arises due to the signature of the package not being validated against the system's trusted certificates or because of a mismatch in the PFN. Here are some steps you can take to troubleshoot and resolve this issue:

### Steps to Resolve Error 0x800701C9

1. Verify Digital Signatures:
Ensure that the digital certificates associated with the .cer, .pfx, and .pvk files are valid and have not expired. You can do this by:
- Right-clicking on the certificate file (.cer) and selecting Properties.
- Going to the Digital Signatures tab and verifying the signature details.

2. Match Package Family Name (PFN):
Ensure that the PFN in the package you're installing exactly matches the expected PFN. You can verify this by checking the manifest file (AppxManifest.xml) within the .appx package.

3. Install the Certificate:
Make sure the certificate you are using is installed properly to the Trusted People store. Here’s how you can install it:
- Double-click the .cer file.
- Click on Install Certificate.
- Choose Local Machine and proceed.
- Place the certificate in the Trusted People store.

4. Re-download the Package:
There might be a corruption in the existing package files. Try downloading the package again from the Dolby Access - Official app.

5. Use Powershell:
Open PowerShell as an Administrator and run the following commands to install the package:

powershell
   Add-AppxPackage -Path "C:\path\to\DolbyLaboratories.DolbyAccess_3.22.10269.0_x64_rz1tebttyb220.appx" -DependencyPath "C:\path\to\dependency1.appx","C:\path\to\dependency2.appx"

Ensure you replace the paths with the correct paths on your system.

6. Check System Update:
Ensure your operating system is fully updated, as certain updates might affect app installations.

### Additional Verification

Here are a few more things you can double-check:

• Ensure Correct File Extensions: Make sure all related files (.appx, .cer, .pfx, and .pvk) are correctly recognized by the system and are not corrupted.
• Access Rights: Ensure you possess the necessary administrative rights to install the package.
• Check SCCD: Validate that the System Capability and Configuration Descriptor (SCCD) aligns with the package's capabilities.

### Contact Support

If the issue persists, you might need to contact Dolby or Microsoft support for further assistance, given that it might involve intricate details about the package signing and system configuration:

• Microsoft Support
• Dolby Support

### Keeping in Mind the Community Guidelines

Please remember to avoid posting sensitive personal information online and always respect licensing and usage rights of software packages.

Hopefully, these steps will help resolve the installation error. Let me know if you encounter any more issues!

same error App installation failed with error message: error 0x800701C9: While preparing to process the request, the system failed to register the windows.capability extension due to the following error: None of the authorized entity elements in the SCCD matched the app being installed; either the PFNs don't match, or the element's signature hash doesn't validate.. (0x800701c9)

 

[ChatGPT]

Let's break down the issue you're encountering with random black screens while your PC remains operational. Based on the detailed responses you've provided, including testing with another monitor, here’s an analysis along with suggestions on how to move forward:

Analysis of Current Situation​

1. Multiple Monitors: Since you've tested with a different monitor (which was also old and failing) and the problem persists, it indicates that your monitor is likely not the primary culprit.
2. Drivers: You confirmed that your graphics drivers are up to date, which rules out driver issues.
3. Power-Saving Features: You’ve disabled power-saving settings, ensuring that these aren't contributing to the display problems.
4. Stress Testing Results: The stress tests you provided seem to indicate stable temperature and usage metrics during typical usage scenarios, which suggests that overheating or performance bottlenecks are less likely to be causes at this point.
5. Background Applications: The applications running in the background (like Unified Remote and Chrome Remote Desktop) should be monitored further, though if they aren't connecting, they likely aren't causing the issue.
6. BIOS: Your BIOS is up to date, which is good as it helps rule out motherboard incompatibilities with current hardware.

Next Steps for Diagnosis​

Given that you're still experiencing random black screens, it might be beneficial to focus on the following components for further isolation of the issue:

1. Graphics Card (GPU):
   • Possible Testing: If you have access to another GPU or can borrow one, try swapping it out temporarily to see if the black screen issue persists. If the problem goes away, it might indicate a failing GPU.
   • GPU Stability Tests: Use benchmarking software like FurMark to stress the GPU. Monitor for artifacting or crashes, which could indicate a failing graphics card.
2. Power Supply Unit (PSU):
   • Testing Availability: If you have access to a multimeter, you can manually test the PSU voltages under load; look for the +12V rail specifically. If you're not comfortable doing this, consider replacing the PSU with a known good unit.
   • Symptoms: An underpowered or failing PSU can cause instability, leading to black screens during usage as it may not be delivering stable power to your GPU.
3. RAM:
   • Memory Testing: Run MemTest86 to check for faulty RAM. Bad RAM can result in system instability and various errors, including display issues.
   • Re-seating RAM: Sometimes simply re-seating the RAM sticks can make a difference, as can removing sticks one at a time to see if one is failing.
4. Cooling:
   • Thermal Paste: If you're comfortable, consider reapplying thermal paste if your CPU/GPU temperatures seem high under load, which could indicate inadequate cooling.
   • Airflow: Ensure that your case is adequately ventilated, and that no fans are obstructed or failing.

Conclusion​

The sporadic nature of your black screens suggests a hardware issue, likely with the GPU or potentially the PSU. Stress-testing each component methodically while monitoring real-time performance metrics should lead you toward identifying the problem.
If you can run specific tests and gather more feedback on which area seems suspect, it'll help narrow down the exact cause of the instability. Let me know if you need further guidance on performing any of these tests!