HP Sure Start Recovery Fix

🔧 HP Sure Start Recovery [S20]
"Unauthorized intrusion to HP runtime system firmware"
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1
Understand the Error
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HP Sure Start detected unauthorized firmware changes. This is a security feature that protects your system BIOS. The error code [S20] indicates a runtime memory intrusion was detected.
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This is NOT always a malware attack - it can be triggered by legitimate software conflicts
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HP Sure Start automatically restores BIOS to a known good state
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Repeated occurrences need investigation
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Immediate Actions
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Take these steps right away to address the error:
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Click "OK" on the error screen to continue booting
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If the system boots successfully, make note of when the error occurred
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Check Windows Event Viewer for HP Sure Start events (eventvwr.msc)
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Document any recent software installations or updates before the error
3
Update BIOS and Firmware
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Check for Software Conflicts
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Reset BIOS to Defaults
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Disable and Re-enable Sure Start
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Run Hardware Diagnostics
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Scan for Malware
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Check Event Viewer Details
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10
Contact HP Support
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⚠️ Important Notes
• Always backup important data before making BIOS changes • Do not interrupt BIOS updates - keep laptop plugged in • If under warranty, contact HP before attempting hardware fixes • Most cases are resolved by BIOS update + software conflict removal
Official HP documentation: hp.com/go/techcenter/startup