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Tried 4 times to install Windows 11. Each time the program has downloaded and gets to about 90% installed. Then, there is an error message saying "Undoing changes made to your computer."
And there is no indication what the issue is.
Does anyone have any suggestions?
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Suggestions:
Unplug external hard drives, USB drives, printers, scanners
Remove SD cards if any
Disconnect Bluetooth devices
Windows 11 needs at least 30–35 GB free on C: during upgrade.
Update BIOS and all the drivers before proceeding.
Disable AV or, Internet Security if any.
Reset Windows Update Components
Open Command prompt as Admin and type:
sfc /scannow and hit the Enter key.
DISM /Online /Cleanup-Image /RestoreHealth and hit the Enter key.
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After the rollback, do you see any error code in Settings, Windows Update, Update history?
This message appears when Windows 11 fails late in setup and removes the update to protect your system. The reason does not show on the screen.
I suggest checking Update history for failed items, checking Device Manager for drivers with warning icons, confirming at least 64 GB of free storage, and making sure Windows 10 shows no pending restart.
