secure boot violation

[matt61791]

I tried turning on my all in one and i am getting a secure boot violation. invalid signature detected. check secure boot policy in setup

[old_geekster]

@matt61791, welcome to the forum.

Here are some suggestions that I found on the Microsoft Community you should try:

Method 1: Disable security boot

I would also suggest you to disable the secure boot and check. When your computer starts, wait for the manufacturer logo to check the option for boot menu, it will usually be any of the function key (eg: F12). Restart the computer; keep pressing the Boot menu option key to enter the boot menu. Disable the secure boot option and check.

Method 2: Disable driver signature enforcement.

Please refer the link.

http://windows.microsoft.com/en-US/windows-8/windows-startup-settings-including-safe-mode

Note: Refer Disable driver signature enforcement in the link above.

You may contact the computer manufacturer for further assistance if this doesn’t resolve the issue for changes in BIOS (Basic Input/output system).

Note: Modifying BIOS/ complementary metal oxide semiconductor (CMOS) settings incorrectly can cause serious problems that may prevent your computer from booting properly. Microsoft cannot guarantee that any problems resulting from the configuring of BIOS/CMOS settings can be solved. Modifications of the settings are at your own risk.

Please read the Note carefully, but if you do have problems with the BIOS you can select the option to reset it to the Defaults.

Please click the Thumbs up + button if I have helped you and click Accept as Solution if your problem is solved.

[matt61791]

method 1 did not work. i changed the setting and restarted. after i restarted it now i get the error "no boot disk has been detected or the disk has failed"

[old_geekster]

Thank you for the additional information, @matt61791.

I have asked an HP Agent to help you.  One should contact you soon.