0x80073D15 is an app package result. A main or another optional app package has the same application ID as this optional package. Change the application ID for the optional package to avoid conflicts.
Code reference and safe checks
Read the exact screen and operation before selecting a repair. This page does not run commands or collect files, keys or logs.
What this value means
A main or another optional app package has the same application ID as this optional package. Change the application ID for the optional package to avoid conflicts.
This is an app package or Store deployment result. The package name and AppX deployment event often supply the missing detail.
| Code | 0x80073D15 |
|---|---|
| Symbol | ERROR_INSTALL_OPTIONAL_PACKAGE_APPLICATIONID_NOT_UNIQUE |
| Windows family | App and Microsoft Store errors |
| Source level | Microsoft code and symbol entry |
Safe next steps
- For 0x80073D15 (ERROR_INSTALL_OPTIONAL_PACKAGE_APPLICATIONID_NOT_UNIQUE), record the package name, installed version, Windows build, and whether this is install, update, move, or removal.
- Check the app publisher’s official package and Windows AppXDeployment-Server events for the specific operation.
- Back up app data before uninstalling or resetting a package; on managed PCs, check policy with IT.
After one step, repeat the original operation and record whether this same code returns. A different code needs a fresh interpretation.
What this code cannot prove
The source establishes the identifier and reference meaning. It does not establish the cause on your specific PC.
If the result differs from the documented message or a repair could remove data, stop and use the official source or vendor support.
Official reference and verification
Source type: Microsoft code and symbol entry. Checked against the source set on Nov 2, 2026.
The reference gives the meaning of this identifier. It does not inspect your PC or guarantee that one repair will work.