0x87E0000D shows up when installing a game from the Microsoft Store or the Xbox app, with the message “Something unexpected happened.” The install stops, usually because of a network interruption, a problem with the store service, or corrupted install data. Microsoft publishes no dedicated support article for this code, so the steps below are the standard install troubleshooting that applies to it, in the order worth trying.
If the same game fails on a healthy connection while other games install fine, the install data or the store listing for that game is the likely problem, so try installing it on a different console or PC with the same account if you can. If every install fails, update the console system software, check that the console has enough free storage, and contact Xbox Support with the code and the game name.
Does Microsoft have an official page for 0x87E0000D? No dedicated support article for this code was found. The code is widely reported for failed Microsoft Store game installs, and the steps here are the standard install and network troubleshooting for that failure.
Is 0x87E0000D a network error? Often, yes. It is most commonly reported when the connection drops during an install or the store service is having trouble, but corrupted partial install data can cause the same code.
Will I lose my saves if I delete the partial install? No. Deleting a partially installed game removes the game data only. Saved games are kept separately and sync from the cloud when you sign back in.