Or you could just take the time to learn BAIN, Wrye Bash's installer, and then it doesn't matter when you install any mod, since you have total control over your Installation Order. BAIN shows you file overlaps and allows you to adjust your Installation Order, much like a Load Order, as needed. For example,... Oops! I forgot to install the Unofficial Patch but now I have over 300 mods installed, what to do?! No worries, simply put the Unofficial Patch at the beginning of your Installation Order and click install, you're done, and nothing from later ordered mods were overwritten. Do you want the Unofficial Patch to overwrite those 300 mods? (In reality no, but for example read on) No problem, move it to last in your Installation Order and click install, now it has overwrote all previous packages. If this same scenario happened with an OMOD installation you're basically screwed and would have to rework your entire installation, due to limitations of OBMM. BAIN truly is the best method of installation and I'll never understand why people refuse to adopt it. Take the time to learn BAIN if you want total control of your installation and the ability to add any mod at any time and not worry about unwanted overwrites, since you have options to control these overlapping files. The following links will help introduce you to BAIN. Wrye Bash Pictorial Guide for Newbies - by alt3rn1y BAIN Mod Installation Projects comprehensive instructions from beginner to advanced - by Psymon