Error 0x80073CF9 is a severity failure error usually seen on the Windows Store Updates when they fail. Windows Store is a way to install and update programs (called “apps”) on Windows 8 and 10 machines. It’s possible to get both paid and free apps through the Windows Store, of which there are 699,000 total.
In some cases, trying to download or update an app through the Windows Store causes the 0x80073CF9 error to appear, which stops all further app downloads and updates. To resolve this error, follow the method below.
Repair Corrupt System Files
Download and run Reimage Plus to scan for corrupt files from here, if files are found to be corrupt and missing repair them using Reimage Plus in addition to performing the Methods below.
Method 1: Create the AppReadiness folder
Go to the partition where Windows is installed (C: by default) and open the Windows folder or Hold the Windows Key and Press R. Type C:\Windows and Click OK. In here, create a new folder by right-clicking, selecting New, and clicking Folder. Name the folder AppReadiness. The final path to the folder should be “C:\Windows\AppReadiness”. The Windows Store should work properly now.
Method 2: Switch from wireless to wired connection
In some cases, the Store will give the error if you’re using WiFi. In that case, try switching to a wired connection by plugging in an Ethernet cable into your device and the router through which you receive the internet connection.
Once it is plugged in, Hold the Windows Key and Press R. Type ncpa.cpl and Click OK. Right Click, your wireless adapter and choose Disable, try the updates/downloads – if it works, right click the wireless adapter again to enable it, and then disconnect the ethernet cable.
Method 3: Give the Store access to the Packages folder
This error sometimes occurs when the Store can’t write any data to the Packages folder, which is located inside the C:\ProgramData\Microsoft\Windows\AppRepository folder.
First, make sure you can view hidden folders and files by going Start > Control Panel > Appearance and Personalization > Folder Options > View > Advanced Settings > click “Show hidden files, folders and drives”> Click OK.
Right Click AppRepository and choose Properties. Click Security -> Advanced -> Continue and Allow Full System Access to ALL APPLICATION PACKAGES and SYSTEM.
Method 4: Creating a New Microsoft Account
It is possible that the Microsoft Account that you are using is preventing the Windows Store and other Microsoft default applications from working properly. Therefore, in this step, we will be creating a new Microsoft Account. For that:
- Click on the “Start Menu” button and select the “Settings” icon.
- Inside the settings, click on the “Accounts” button.
- Select the “Family & Other People” from the left pane and click on “Add someone Else to this PC“.
- Click on the “I don’t have this person’s sign in information” option and select the “Add a user without a Microsoft Account” setting.
- Enter the credentials for the account you want to create and click on “Next“.
- Once the account is created, click on the account and select the “Change account type” Option.
- Click on the dropdown and select “Administrator” from the options.
- Click on “OK” and sign out of the current account.
- Sign in to the new account, run the application and check to see if the issue persists.