A helpful approach can be to manually put each target boot device on the Critical Device List with Start code 0, placing its vendor & device code permanently in the registry for whenever it is needed after that when you want to boot from that particular controller again later.<p>Some related info:<p><a href="https://www.remkoweijnen.nl/blog/2011/06/18/switch-sata-operation-mode/" rel="nofollow">https://www.remkoweijnen.nl/blog/2011/06/18/switch-sata-oper...</a>