https://www.officelivesupport.com/windows-update-error-code-0x80070003/ The Error code “0x80070003” is a common Windows error typically occurring when there is an issue with a file or folder on your computer. Error 0X80070003 is also known as the “Windows Update error” or the “Windows Store error”, as it often appears when attempting to update Windows or install an application from the Microsoft Store. The error message associated with this code usually reads: “Windows could not complete the installation. Install Windows on this computer, restart the installation.”