What Causes the Windows Media Creation Tool Error 0x80042405 – 0xa001a?įrom the wrong type of USB drive to the Media Creation Tool not working properly, the error code 0x80042405-0xa001a can be caused by a variety of factors. Read our tutorial to figure out how to fix this Media Creation Tool error. About Outbyte, uninstall instructions, EULA, Privacy Policy.Įven after several Windows updates, this issue occurs from time to time. The Windows Media Creation Tool will first work properly and then display the message “Creating Windows 10 Media – Progress 40%” before becoming stuck and displaying the error message “ There was an error running this tool” with the error code 0x80042405-0xa001a.Ĭompatible with: Windows 10, Windows 7, Windows 8 The error code 0x80042405, also known as the error code 0x80042405-0xa001a or the error code 0x80042405 – 0xa001b, occurs when using the Windows 10 Media Creation Tool (MCT) due to issues with the drive format or ISO file of the Windows 10 OS for which you are attempting to create a bootable drive. What Is the Media Creation Tool Error 0x80042405? Changing the MBR to GPT and using the Reset Media Creation Tool may help to resolve this issue. The main cause of the Media Creation Tool error 0x80042405-0xa001b on your system is a change in Windows file settings. Today, in this blog post, we will show you some simple solutions to this vexing error.

This issue will not appear if you install the update using Windows Assistant.

This problem occurs only when you use bootable media (a USB drive). Several users have reported the Media Creation Tool error 0x80042405-0xa001b appearing on their PCs after installing Windows 10 19H1.

Windows media creation tool error