Windows & BSOD · medium

How to fix0x80073CF9

0x80073CF9 - Store App Installation Failure

What this error means

0x80073CF9 - Store App Installation Failure ranks as a medium-severity Windows operating system issue in our database. The app package installation failed due to missing package directories or corrupted store database records. Commonly occurs when updating or installing games/applications from the Microsoft Store. It's most often caused by incorrect Windows system time or region settings and background update installer service blockages. The steps below are ordered to resolve this efficiently.

Before you begin

Save open work and back up important files. Use instructions for your exact device and software version. If Windows cannot start, see the startup guide.

Work through these checks

0 of 4 complete
01Recreate the AUInstallAgent directory in Windows
  1. Recreate the AUInstallAgent directory in Windows
What to expect

Check whether the original symptom still occurs.

If it does not help

Continue only if this check applies to your device. Consult its manufacturer if you are unsure.

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02Reset Microsoft Store via WSReset utility
  1. Reset Microsoft Store via WSReset utility
What to expect

Check whether the original symptom still occurs.

If it does not help

Continue only if this check applies to your device. Consult its manufacturer if you are unsure.

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03Synchronize Windows time and timezone settings
  1. Synchronize Windows time and timezone settings
What to expect

Check whether the original symptom still occurs.

If it does not help

Continue only if this check applies to your device. Consult its manufacturer if you are unsure.

Browse related errors
04Run the Windows Store App Troubleshooter
  1. Run the Windows Store App Troubleshooter
What to expect

Check whether the original symptom still occurs.

If it does not help

Continue only if this check applies to your device. Consult its manufacturer if you are unsure.

Browse related errors

Possible causes

  • Missing AUInstallAgent system directories
  • Corrupted Microsoft Store download cache files
  • Incorrect Windows system time or region settings
  • Background update installer service blockages