Draft log:
Issue: random CTD & game freeze in exterior cell during Vilja's quest.
1. Suspected Vilja causing script overload:
- deleted AAEMUninstallingChestScript from active script
- restored Vilja's esp to original state
- restored to previous save without Vilja
= no fix
2. Suspected frame rate & game physic issues:
- limited max frame rate to 58, 59, and 60
- restored to previous Skyrim.ini without [HAVOK] & [Display] edits
- enable nvidia Vsync & disable Gsync
= no fix
3. Suspected Animated Armoury causing animation issues:
- regenerated behavior using FNIS 7 & 7.2
- disabled PCEA2 setting in Animated Armoury
- disabled Animated Armoury via MCM menu
= no fix
4. Suspected unknown scripts and mesh error issues:
- Papyrus Data Transfer diagnosis (with papyrus logging enabled)
- Removed weapon rack script
- Flora Save Fixer
- Removed active threads
- Nif Healer
= no fix
5. Suspected memory,.ini and ENB issues:
- Compared ENB, all SKSE mods, and .ini files from Dec 2017 build
- Removed redundant mods
- Restored HDT Bounce .xml back to previous stable version
= no fix
6. Suspected virus, hardware and temperature issues:
- Scanned computer
- Cleaned computer components
- CPU thermal paste reapplied
= no fix, but air flow was much better
7. Suspected BIOS and GPU setting issues:
- Restored BIOS from high performance to default
- Restored GPU setting from custom OC mode to Game mode
= fixed, traveled with Vilja from Riverwood to Whiterun to Valtheim towers to Windhelm to Shor's stone to Riften and she read Olaf and the Dragon Chapter 1 near Honeyside. No CTD!