• Use the recovery USB key provided by Lenovo to restore the entire storage drive to the factory-default
settings.
– If your computer comes with the recovery USB key, follow the instructions shipped with the USB key.
– If your computer does not come with the recovery USB key, contact the Lenovo Customer Support
Center to order a recovery USB key. See "Calling for service" on page 138.
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ThinkCentre M700 and M900 Hardware Maintenance Manual