I tried moving steam out of C:\Program Files, and still not working. The mods I'm trying to get to work are esp files, not BSA, so that shouldn't be the issue. The DLC is also all esp, and those work fine, so I have no idea at all why the mods aren't being recognised. I've never had an issue like this before, and years ago mods worked fine on the disc copy of Oblivion that I had.
Some mods require OBSE to work. Maybe that is the issue here. You can download the latest version here. There are special requirements for installing OBSE on a steam version of the game. The instructions are here. (You don't need to copy the src-folder, it's just the source code.)
When it's installed you don't run Oblivion via the launcher or Oblivion.exe anymore. Use obse_loader.exe. See if it works.
Some general tips on modding oblivion:
- Don't use NMM.
- Get the 4gb memory fix.
- Always run obse-loader.exe as administrator (in Windows 7 properties you can permanently set this under compatibility options).
- Use BOSS to sort your load order.
- Learn about "Archive Invalidation", it's especially important with Steam-versions of the game. OBMM has an utility for that. I use OBMM for nothing else.
- Familiarize yourself with OBMM and/or Wrye Bash. With some mod configurations the latter is pretty much essential, as they require a bashed patch to work. Don't worry, most of the stuff Wrye does it does automatically, if not the mod usually states what you have to do in the description). Using Wrye Bash will result in a more error free installation in most cases, especially with many mods. It also opens up the possibility to use more plugins then Oblivion's hard coded limit. And it can make different mods work together that normally wouldn't.
- Read the description of any mod you want to install very carefully. If the readme differs from the description on the Nexus, read that too. Many many mods need additional patches depending on the other mods you have installed. Some need a patch for every DLC. As an example Better Cities and Unique Landscapes are two very popular mods that conflict with each other, depending on what you have already installed and which options you choose when installing those mods. Some mods need additional OBSE-Plugins to work. Read the requirements, only activate a mod when you're sure you have ALL the files that you need.
- Seriously don't use NMM.
Edited by KoderOne, 23 November 2015 - 01:24 PM.