I am attempting to install Windows 7 on a HP envy m6 with Win 8 pre installed. After the first part of the installation (copying new files, expanding files... etc) the system is restarted and a page with this error message,
A recent hardware or software change might have installed a file that is signed incorrectly or damaged.....
If you have a windows installation disk.....
Otherwise, to start windows....
File: \ $WINDOWS. ~ BT\Windows\System32\winload.efi
Status: 0xc0000428
Info: The digital signature for this file could'nt be verified
Pressing enter takes me back to the boot manager with options: Windows Setup and Windows 8
Selecting Windows Setup takes me back to the error message
Any help would be greatly appreciated. Thanks.