Latest Windows 10 update installed overnight now no Acrobat. Program won't open 'Protected Mode dialogue box'
'Adobe failed to load its core DLL'
It seems the installation has gone bad due to some reason.
Try to uninstall Acrobat from your machine using cleaner tool: Download Adobe Reader and Acrobat Cleaner Tool - Adobe Labs
Once the product is uninstalled, restart your machine and then try installing. Let us know if that helps.
If you already have found a solution to this issue, please update this thread with your findings.