Hello @PedoneRosso
Hmm…then I’m head scratch why…
And your W11 machine runs Fast Startup = disabled?
Did you try Norton 360 Troubleshooting?
Reset to Default | Repair Norton
Note: Reset to Default resets Cloud Backup
Maybe, refresh (clean install) your Norton 360 install and then…if “no joy”.
May be best to document issue via official Norton support.
The “Keyboard Error” during a Norton 360 Startup Scan typically occurs because of a conflict between the scan’s pre-boot environment and your hardware or recent system changes. This can often be resolved by clearing corrupted files or performing a clean reinstallation of the software.
- Perform a Full Restart: Do not just “Shut Down” and turn the PC back on, as Windows Fast Startup can prevent the system from fully resetting the environment needed for a startup scan. Select Restart from the Power menu.
- Run System File Checker (SFC): Corrupted Windows system files can cause pre-boot errors.
- Search for
cmdin the Start menu, right-click it, and select Run as administrator. - Type
sfc /scannowand press Enter. - Once finished, run
DISM /Online /Cleanup-Image /RestoreHealth.
- Uninstall Recent Windows Updates: If this error started immediately after a Windows update, that update may be incompatible with Norton’s boot-time environment. Navigate to Settings > Update & Security > Windows Update > View update history > Uninstall updates and remove the most recent entry.
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Startup Scan is an advanced tool that runs before the operating system fully loads to catch deeply embedded malware. Because it runs in a simplified environment, it is highly sensitive to:
- Hardware Incompatibility: If your keyboard uses non-standard drivers that aren’t loaded in the pre-boot state, the scan may trigger a “Keyboard Error” and abort.
- Failed Updates: A partial Norton or Windows update can leave the boot-time scanning engine in an unstable state.
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Download and run the Norton 360 Remover tool for Windows here
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fwiw ~ may be related:
https://community.norton.com/t/n360-startup-scan/431071
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AI sourced content may make mistakes
Note: for critical matters like billing, legal issues, or account security, it is always best to verify directly with Official Norton Support → Contact us