I got a disk a used computer. Mac OS X Snow Leopard apple Internal Use Software. It has a copy of Filemaker Pro 10 Advanced. I am helping a friend catalog her dad's artwork, so I want to learn Filemaker pro and don't need the latest since I'm not that sophisticated.
I copied the folder into my Applications but when I tried to open and intall it, I got this message:
FileMaker Pro 10 Advanced can't be opened because it is from an unidentified developer.
Your security preferences allow installation of only apps from the Mac App Store and identified developers.
“FileMaker Pro 10 Advanced” is on the disk image “fmpa_10.0.3.303.dmg”. Safari.app downloaded this disk image on July 15, 2009.
I went into my security settings and clicked open anyway, but I get the same message. I am runnin OS X El Capitan Version 10.11.4. Any advice?