To troubleshoot the crashing issue of the Verizon One Talk app on your PC, follow these detailed steps:

Ensure you're using the latest version of the One Talk app. The most recent version mentioned was 2.1.2, which has been reported to resolve some functionality issues - learn more.

1. Update Windows: Make sure that your Windows operating system is up to date. Sometimes, compatibility issues arise from outdated system software.

2. Check System Requirements: Verify that your PC meets the minimum system requirements for the One Talk app. Check Verizon’s support page for specific requirements - learn more.

3. Clear App Cache: If you haven't already, clear any cache or temporary files related to the One Talk app. This might help eliminate any corrupt files causing the crashes.

4. Run as Administrator: Right-click on the One Talk app icon and select "Run as administrator." This might help if there are permission-related issues affecting the app's performance.

5. Disable Conflicting Software: Antivirus or firewall programs can interfere with app performance. Try temporarily disabling them to see if it resolves the issue. If it does, consider adding an exception for the One Talk app.

6. Reinstall the App Correctly:
- Uninstall the One Talk app completely from your PC.
- Restart your PC.
- Download the latest version of the app from the Verizon website.
- Install the app following the on-screen instructions carefully.

7. Check for Driver Updates: Ensure your system drivers, especially those related to your graphics card and audio device, are updated. Outdated drivers can lead to application instability.

8. Network Stability: Ensure that you have a stable internet connection. Unstable connections can cause the app to fail. Try using a wired connection if possible, or reset your router.

9. Review Background Processes: Close unnecessary applications running in the background that may consume system resources. Use the Task Manager to check this.

10. Seek Help from Verizon Support: If none of the above steps resolve the issue, consider reaching out to Verizon customer support for further assistance. They may have additional tools and resources to help diagnose and fix the problem - learn more.

By following these steps, you should be able to diagnose and potentially resolve the crashing issue with the Verizon One Talk app on your PC.