Ok so if you are not able to find why your windows 10 upgrade is failing , you may want to check below steps to generate the logs ?
If yous windows 10 upgrade failed, you can check some details in Windows “eventvwr” under administrative logs, But that doesn’t give much information.
To check the detailed logs for last failed upgrade follow below steps:
- Go to Windows PowerShell (search powershell in search window)
- Run below command:
It will parse the proprietary log files and will generate human readable text file with more details. Location will be desktop with name as WindowsUpdate.log
Here is a video with actual steps