HP Elitedesk 800 G3 SFF - Secure Boot

derjoerg

New Member
Apr 12, 2023
8
0
1
Hallo zusammen,
ich habe mir einen HP Elitedesk 800 G3 SFF (refurbished) gekauft (mit installiertem Win11) und wollte darauf Proxmox installieren.
Also habe ich einen bootable USB-Stick erzeugt (Etcher und Rufus probiert) und im BIOS "Secure Boot" deaktiviert.

Sobald ich aber den Rechner neu starte bekomme ich die Fehlermeldung:
Secure Boot
Selected boot image did not authenticate.
Please press enter to attempt boot to next device.

Es sieht also so aus, als ob "Secure Boot" trotzdem noch an wäre.

Kann mir da jemand helfen?
 

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