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Gaming Problem: Xbox App / PC Game Pass installs failing at the very end (error 0x80073CF6), often when installing to a non-C: drive (2026-02-21 23:01)
Feb 21, 2026 11:01 p.m.

Problem: Xbox App / PC Game Pass installs failing at the very end (error 0x80073CF6), often when installing to a non-C: drive

Published: 2026-02-22 00:35 (local time)

Quick Summary

  • Many PC Game Pass users report downloads hitting 100% and then failing with 0x80073CF6 or a generic “Something went wrong.”
  • It frequently happens when installing to a secondary drive (D:/E:/H:), while other launchers work normally.
  • There’s no single official “one-click” fix; successful workarounds vary by system.
  • The most reliable community pattern: repair/reset the Xbox app + reinstall Gaming Services + fix/clear broken WindowsApps/XboxGames folders on the target drive.
  • Some fixes are invasive (permissions/ownership changes). Know when to stop and use official support.

What’s happening

Across Windows 10/11 PCs using the Xbox app (PC Game Pass / Microsoft Store delivery), a common failure mode is: a game downloads completely, then the install/verification step fails right at the end. Users often see error code 0x80073CF6 (sometimes alongside “Something went wrong”), and the install either rolls back or becomes stuck in a broken state.

This is especially reported when the install target is not the C: drive. Players say the Xbox app may still stage files on C: and then fail when finalizing to the chosen drive, leaving behind corrupted or inaccessible folders like WindowsApps, WpSystem, and XboxGames on the target disk. Community threads describe this persisting for weeks or months, with no universal solution that works for everyone.

While Microsoft support guidance often focuses on cache resets and reinstall attempts, real-world reports show that the underlying problem can be a mix of Gaming Services, folder permissions/ownership, and broken install remnants that the app can’t recover from cleanly.

Likely causes (what research suggests)

  • Gaming Services or Xbox app install pipeline corruption: Users report success after removing and reinstalling Gaming Services, implying the service layer that handles installs can get stuck or corrupted.
  • Broken/locked WindowsApps permissions on the target drive: Multiple reports point to the target drive’s WindowsApps folder being owned/locked in a way the install process can’t update, especially after failed installs or drive changes.
  • Leftover partial installs conflicting with new installs: The “fails at 100%” pattern fits conflicts during finalization, registration, or file move/verification steps, where remnants block completion.
  • Sometimes it’s not “widespread outage” related: Xbox Live outages do happen, but this specific symptom commonly persists outside outage windows and behaves like a local install state problem rather than an online service interruption.

Solutions & Workarounds

1) Repair/Reset the Xbox app and clear Store cache (least risky first)

Who it helps: Windows 10/11 users seeing 0x80073CF6 or “Something went wrong” during installs.

  • Close the Xbox app completely.
  • Open Settings > Apps > Installed apps (or Apps & features).
  • Select Xbox > Advanced options > run Repair.
  • If it still fails, run Reset (note: this may sign you out and clear app data).
  • Clear Microsoft Store cache (commonly done via the system’s Store cache reset command).
  • Reboot and try the install again.

Risks/tradeoffs: Reset can remove app preferences and require re-login.

Stop and contact official support when: installs fail on multiple titles after repair/reset, especially if the Store also fails to update apps.

2) Reinstall “Gaming Services” (common community “turning point” fix)

Who it helps: PC Game Pass users whose installs consistently fail at 100% across many games.

  • Uninstall Gaming Services from Windows (if available in installed apps) or use Microsoft-recommended steps to remove it.
  • Reinstall Gaming Services (usually via the Microsoft Store prompt or reinstall flow).
  • Reboot the PC.
  • Open Xbox app and retry the install.

Risks/tradeoffs: Temporary disruption to Game Pass installs/launching until reinstalled correctly.

Stop and contact official support when: Gaming Services fails to reinstall or repeatedly errors during reinstall.

3) Fix the target drive’s broken WindowsApps/XboxGames remnants (rename or remove leftovers)

Who it helps: People installing to a secondary drive where prior attempts left corrupted folders.

  • Pick the drive you want to install to (example: D:).
  • Check the root of the drive for WindowsApps, WpSystem, and/or XboxGames.
  • If present and you suspect they’re broken, try renaming (e.g., WindowsApps.old) so Windows/Xbox app can recreate clean folders.
  • Reboot.
  • In Xbox app settings, confirm the default install drive is set correctly, then retry.

Risks/tradeoffs: Renaming/removing these folders can break existing installed Microsoft Store/Xbox games on that drive.

Stop and contact official support when: you can’t rename/delete due to permissions, or you have important installs you can’t risk invalidating.

4) Take ownership / repair permissions on the target drive folders (power-user workaround)

Who it helps: Users who can reproduce the issue only when installing to a specific drive and see access/permission errors.

  • Back up what matters on that drive first.
  • Use Windows security settings to ensure your admin account can manage the install folders on the target drive.
  • If necessary, take ownership and grant administrators full control to the broken WindowsApps folder on the target drive.
  • Retry the install.

Risks/tradeoffs: Changing permissions on WindowsApps can cause unpredictable behavior with Store-managed apps; do this only if you’re comfortable recovering/redoing installs.

Stop and contact official support when: you’re unsure about permission changes, or the drive contains critical Store apps you can’t reinstall easily.

5) Change the install location back to C: temporarily (band-aid that often works)

Who it helps: Players blocked from playing at all and willing to sacrifice disk organization to get the game installed.

  • In the Xbox app, set the install location to C:.
  • Install the game successfully.
  • Only after success, consider moving the game (if supported) or keep it on C:.

Risks/tradeoffs: Consumes SSD space; doesn’t address the underlying secondary-drive issue.

Stop and contact official support when: C: installs also fail (indicates broader Store/Gaming Services corruption).

6) If a specific title fails: delete and reinstall the game entry cleanly

Who it helps: Cases where one game is stuck in a broken “almost installed” state.

  • Cancel the install in Xbox app.
  • Uninstall/remove the game entry if it appears installed.
  • Reboot.
  • Retry install (preferably after completing solutions #1 and #2).

Risks/tradeoffs: Time/bandwidth cost.

Stop and contact official support when: repeated reinstalls still fail at the same final step.

Prevention (so it doesn’t come back)

  • Keep Gaming Services and the Xbox app updated; avoid interrupting installs near the final “finishing up” stage.
  • Don’t repeatedly switch install drives mid-install; choose a drive and keep it consistent for the session.
  • If you replace or re-letter drives, expect the Xbox app’s managed folders to break; plan a cleanup before mass installs.
  • Periodically verify the target drive has healthy free space and no file system errors.

FAQ

  • Q: Does error 0x80073CF6 mean Xbox Live is down?
    A: Not necessarily. Xbox Live outages can happen, but this error commonly behaves like a local install/permission/state issue rather than a pure service outage.

  • Q: Why does it fail at 100%?
    A: The last step is often verification/finalization/registration; if the target folders are locked or corrupted, it can fail after the download completes.

  • Q: Why does Steam install fine to the same drive?
    A: Steam doesn’t use WindowsApps/Gaming Services folder controls; the Xbox app is tied to Microsoft’s managed install system and permissions model.

  • Q: Is taking ownership of WindowsApps “safe”?
    A: It can work, but it’s risky and may break Store-managed apps. Try repair/reset and Gaming Services reinstall first.

  • Q: What’s the simplest workaround if I just want to play?
    A: Install to C: temporarily (if you have space). It avoids the secondary-drive permission tangle.

  • Q: When should I stop troubleshooting?
    A: If Gaming Services won’t reinstall, Store updates fail broadly, or permission changes feel unsafe—contact Microsoft/Xbox support with the exact error and install drive details.

Sources & References

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