Blank Launcher Window

[TheInnkeeper]

I've been trying to get a friend of mine back into FFXIV ARR, but her launcher is always blank whenever she opens it. She used to play on the same PC but never experienced this before she quit. We're both searching Google for solutions, but none are working, except for one that worked for a little bit, running FFXIV in compatibility mode for Windows 98 let her get around 400 minutes of updating done before it froze and the next time she opened the launcher it went back to being blank. I wish there was an error code for this but she's never gotten one, it just sits there and does nothing.

So far I know she's tried: (Not all are still in effect, these are just things she has tried due to suggestions)
- turning off virus protection
- running as admin
- both of those last two at the same time
- updating Internet Explorer
- setting the settings in Internet Explorer to default
- uninstalling IE11 and installing IE9 (It is back to IE11 fully updated)
- making FFXIV an exception in her firewall and virus protection
- adding the FFXIV sites to the IE "safe site" list
- running FFXIV in compatibility mode for Windows 98 (after it stopped working she took this off)

So now we're back to it being blank and we're out of possible solutions, or at least Google ones, so I've come here asking for assistance.