I'll try and keep this short(er)-and-sweet(er).
A bit more testing today of the same rotated images on differing OSes. BAsically copied them to a USB stick and plugged it in for reading with as many different programs I could quickly lay my hands on.
Win7Copied and viewed the images on a Win7 PC. Won't= won't rotate and/or reflect/flip, will= well, you figure it out!:)
- Explorer/File Explorer won't
- Irfanview will
- Photoshop CC 2014.2.2 will
So Jack is correct that the basic file Explorer won't show the orientation properly. I was surprised that it's still this way on Win7, (don't have a Win10 to test on) unless there's a compelling reason then that's just sloppy and lazy from Microsoft and deserves a

! Don't ususally like Macs but in this case good on Apple for maintaining consistency.
Android (4.4.4 on a Nexus 7 2013)Now this gets interesting. Android will allow the rotate but not the flip/mirror! You need an app to do anything on Android.
- ES File Explorer Image Browser won't
- Gallery will rotate only
- Photos will rotate only
- Cymera will rotate only
- Total Commander will rotate only
- Ghost commander will rotate only BUT can also give you the EXIF information (from the menu)
In Android, flipped/mirrored items display in the default orientation. Rotated items will be shown rotated, mirrored + rotated tend to show in default orientation.
Note also I downloaded/save one of Kye's upside-down images to my hard disk, but there was no EXIF data. the only info was some basic JPEG data, but it included the following comment:
CREATOR: gd-jpeg v1.0 (using IJG JPEG v62), quality = 75
I'd upload my 8 different orientations as a zip file for others to try but it seems zip files aren't allowed.

Cheers,