To fix the "You’ll need a new app to open this ms-xbl-multiplayer link"

Corrupted background services frequently interrupt the deep-linking process required for Xbox Live multiplayer.

The most reliable solution for this error is to restore the link handlers through the Xbox app's built-in repair tool.

If you are a PC gamer attempting to join friends in Xbox Live multiplayer games—such as Sea of Thieves , Starfield , or Halo —you might encounter a frustrating error:

Here are the most effective solutions for resolving the ms-xbl-multiplayer link error.

: If playing a Steam game that uses Xbox services (like Sea of Thieves), try joining through the Xbox app's Friends list directly rather than clicking an invite link. You can also create a Party in the Xbox app first, which often changes the "Invite" button to a direct "Join Session" option.

This error is almost always caused by a disconnect between the Windows Store, the Xbox App, and the Game Bar. Common causes include:

If you're encountering the error specifically when trying to join a party on Xbox Cloud Gaming (xCloud), there is a known workaround: .

The most effective way to restore these links is through the built-in repair tools:

: Go to the Microsoft Store, navigate to Library , and select Get updates .

: For games like Sea of Thieves or Forza , ensure your Steam and Xbox accounts are linked. If the error continues, try "verifying local files" in Steam or creating a party in the Xbox app before launching the game.

Make it a habit to check the GitHub page before big weekend gaming sessions.

If your system lacks the correct app associations, or if your Microsoft account has strict privacy restrictions, the link will either: Do absolutely nothing when clicked. Throw a "No app found to open this link" error.

and keep getting this error when accepting invites, the issue is that the Game Bar is trying to find a local installation of the game that isn't there. Don't use the Xbox App. Instead, launch your game through a browser at xbox.com/play Accept invites using the Xbox button within the browser interface rather than the Windows Game Bar. 5. Check Privacy Settings

[LINK] Relay handshake OK – public IP 203.0.113.45:56789 [LINK] Peer found via relay, RTT = 47ms [SYNC] Skew corrected: -23ms → +2ms [DELTA] Packet size: 86 bytes (was 1024)

: Click on the Windows Credentials tab on the right side.