New
#31
I'm sort of at a loss for additional possibilities. A shot in the dark- In the off chance that this is internet related because the OEM downloaded Win 7, you might temporarily make IE your default browser (if it's not already), and follow the advice of this-
How to Disable the Open File Security Warning in Windows 8
In my settings, I have the "Prompt" option set in both cases he mentions and don't get the problem you're having.