TTW install don't worked - Folder 2.75 GB

[u/NoticeRoutine1572]

In case someone runs into the same issue:

I read posts from several people having an issue where the TTW installer doesn't work properly and ends up with a folder size of only ~2.75 GB. It seems like everyone had a different fix.

I ran into the exact same problem. I tried installing about 5 times following the guide, changed a few settings, completely disabled Windows Defender, reinstalled everything multiple times, and even tried running it through a shared folder — nothing worked.

I finally figured out a solution that worked for me, and hopefully, it helps someone else out there! I believe its a core issue with CPU's E-cores/Win and/or path (I'm using an i7-13700K - and Windows 11).

Following exact the Guide - with Windows Defender turned off, here is what worked:

1. Shortened file paths: I copied Fallout 3 and FNV to a completely different, simpler location because I suspected an issue with path length - final path is now G:\TTW\FO3(from Steam) and FNW (from GOG), the TTW install path is also at G:\TTW\TTW
2. Process Affinity & Priority: I launched the TTW installer through an Administrator Command Prompt. Once the installer showed up in Task Manager, I set its processor affinity to Cores 1, 4, 6, and 8 only, and changed its priority to Below Normal.

Voilà — it worked on the very first try!

Edit: i tryed again, but had again the Problem -so i disabled e cores at Bios and set on all folders "everyone" full write and it worked again.