How to fix the “PUR-AuthenticationFailure” Error in Microsoft Store
The PUR Authentication Failure error is a common issue faced by many Windows users when trying to download and install updates from the Microsoft Store. A lot of users have encountered this particular problem, showing the following message when it arises. Error code 0x8007426 could also appear next to this error notification:
“Sign in again
Then try again.
PUR-AuthenticationFailure”
The error message typically states that the update failed to install due to an authentication error and that the user needs to check their internet connection. However, this error can occur even when the internet connection is stable, which can be frustrating for users trying to keep their systems up-to-date.
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