How to fix Outlook Error Code 0x80073CFF upon installation?

1. Clear the Windows Store cache. To do this, press the Windows key + R, type "wsreset.exe" (without quotes), and press Enter. This will clear the cache and restart the Windows Store.

2. Check for Windows updates. Sometimes, installing the latest Windows updates can resolve issues with the Windows Store. To check for updates, go to Settings > Update & Security > Windows Update.

3. Try installing the app from a different user account. If you have another user account on your computer, try logging in to that account and installing the app from there.

4. Try restarting your computer.

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