Forum Discussion
Drein
Jan 02, 2026Iron Contributor
Failed to upgrade older Windows 10 systems
A laptop running an older version of Windows 10 encountered an upgrade failure while attempting to update to a newer version. The process ultimately failed and displayed an error message for which so...
PrestonYork
Jan 07, 2026Iron Contributor
Note the exact error message or code displayed during the upgrade failure.
If no specific code is shown, check Windows Update logs:
Open Event Viewer (Win + R, type eventvwr.msc, press Enter).
Navigate to Windows Logs > Application and System.
Look for recent errors or warnings related to Windows Update or setup failures.