Hi there! I understand that you’re having trouble opening the MyRadar Weather Radar app. Let’s work together to get this resolved.

Firstly, can you let me know if this issue started suddenly or if it occurred after an update? Also, have you tried any troubleshooting steps like restarting your computer or uninstalling and reinstalling the app yet?

Here are some step-by-step solutions we can try:

1. Restart Your Computer: Sometimes a simple restart can fix temporary glitches in software.

2. Reset the App:
- Go to Settings on your computer.
- Click on Apps.
- Locate MyRadar Weather Radar in the list.
- Click on it and select Advanced options.
- Scroll down and select Reset. This will reset the app without deleting your data.

3. Uninstall and Reinstall MyRadar:
- Go to Settings > Apps.
- Find and click on MyRadar Weather Radar, then select Uninstall.
- After it's uninstalled, go to the Microsoft Store and reinstall the app.

4. Check for Updates:
- Ensure your Windows is up to date by going to Settings > Update & Security > Windows Update and check for updates.

5. Running the App in Compatibility Mode:
- Right-click on the MyRadar shortcut, select Properties.
- Go to the Compatibility tab.
- Check the box for Run this program in compatibility mode for, and choose an older version of Windows.

If you’ve tried some of these solutions already, please let me know which ones so I can suggest other steps or deeper investigations.

Are you satisfied with this initial guidance, or do you want to dive into a specific step?