OK, I've found the "HP Cloud Recovery" application.
I'm currently downloading the software for my version of laptop to a USB key.
I hope to recreate the HDD using this software.
Before downloading the software, I entered the serial number. Does any know if this USB can only be used to restore the laptop with that serial number? (I have three of exactly the same model and am wondering of I would be able to use the key on others in the future).
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