Try these checks first:
- Update Microsoft Edge.
- Open Edge.
- Press Alt + F > Settings > About Microsoft Edge.
- Let it install any available update, then restart Edge if prompted.
- Scan the PC for unwanted software or malware.
- Open Windows Security.
- Run a scan from Virus & threat protection.
- Potentially unwanted app blocking is on by default on current Windows 10 systems, and it can be managed in Windows Security > App & browser control > Reputation-based protection.
- Check for interfering extensions if the ad is opening through Edge or web content.
- In Edge, press Alt + F > Extensions > Manage extensions.
- Turn extensions off one at a time, or disable all temporarily, then test Solitaire again.
- If the issue is with Microsoft Solitaire Collection specifically, and ads are appearing abnormally or blocking play, this can be a service-side issue that sometimes resolves on its own after a short time.
- If it continues, submit a request through the Microsoft Casual Games support form: