Its fixed now I just wanted to come back and thank you for the input and just to help anyone else.
Important:
Windows 7 Ultimate 64-bit, latest updates (7601? I think)
Radeon RX 580 8G
16GB RAM
(not a PC hardware problem)
Issue: The game does not run when launched from Initsettings, Game exe and Studio exe, there is no screen, nothing. Just a Windows "spinning" then stops no error.
Things I did before fix:
- Original 1.3 BR working fine
- Reformat Windows (upgraded HDD)> Update to 4.1 BR by copying 4.1 torrent over 1.3 directory
- Issue Start
- Since windows format > ran Registy Fixer .bat --still Issue
- Google-fu
- Reinstall NET Frameworks
- Install Unity
- Change regional settings to VN/Eroge "usual" settings
- Download Vanilla torrent
- Install from Original Installer >> working! but vanilla
- Copy 4.1 BR over Vanilla > working!
- Pasted in backed up UserData folder > original save working.
Resolved.
Just wanted to add that this clearly looked like a registry issue so it may not at all be related to other's issues. Leaving the steps taken, since I work in IT all this is usually helpful to the right reader ;D