Before installing the mods a few things needs to be setup
1 - Make sure that Morrowind is updated to the latest version, and that both expansions (Bloodmoon & Tribunal) are installed.
2 - Sign up at the Nexus. (LINK) - It's free and takes about 2 minutes. The Nexus site is the main source of mods used in this guide.
- Downloading and install NexusModManager, "NMM". (LINK)
*Install the "NMM Community Edition"
4 - Launch NMM
At the very first startup, NMM will search for your game(s). Let it finish, or cancel the auto-search and type in the Morrowind game folder path manually. Then you will be asked where to store the mod files. Any place will do.
5 - Make sure that you have the latest drivers and redistributables installed.
This is important for most games and programs, not only for Morrowind.
Microsoft Visual C++ Redistributable (LINK)
*Install all versions (Both x86 and x64) from 2008 and later.
DirectX9 End-User Runtimes (LINK)
*This will not interfere with DirectX 10/11/12+
.NET Framework (LINK)
*Install all versions from 4.7.2 and newer
GeForce Drivers (LINK)
AMD Drivers (LINK)
If interested, here is a small Windows optimization guide (LINK)
6 - Make some coffee. Downloading and installing will take some time, but at the end you will get the result from weeks of tweaking and testing.
Curious if the result is worth the effort? - Here are some before/after screenshots.
*To take "before" screenshots, I would have to uninstall every single mods again, so I found some screenshots on Google and Bethesda's site instead, then I took a similar shot with all mods added. It's difficult to match the exact same shot with location and time of day, but these should be good enough to give an idea.