A good installation means that you have now the factory install on this disk. Or the support of disks/USB recovery HP Win 8.1 on a new equivalent or larger HDD or SSD. Since you have already upgraded to Win 10, the only way to check the recovery of 8.1 Win disks is to use them and start all over again. You can export the recovery, Partition because it will not work now in any case.īut you need a way to go back to win 8.1 when you need HP warranty support. This policy of HP may have changed during the upgrade to win 10. HP normally requires that the factory installed operating system to take in charge. Have you tested the Win 8.1 HP Recovery disks before installing Win 10?Ī question is: If you need technical assistance from HP tech for a possible hardware problem.