Prevent Crashes in Oblivion
  Patch Oblivion to the latest version available
 
The latest patch for Oblivion is 1.2.0.416. There is no reason anyone should be using anything older than this. You may check what version you have by:

  1. Navigating to your Oblivion directory (by default, C/Program Files/Bethesda Softworks/Oblivion).
  2. Right-click on "Oblivion.exe" and click on "Properties".
  3. Click on the "Version" tab and you will see the version number next to, well, "Version Number".

If this number is less than 1.2.0.416, you need to download the latest patch from here.

If your number is greater than 1.2.0.416, you are either very friendly with Bethesda or something is wrong with your game (maybe a crack/ no-CD patch).

The latest patch is required because Bethesda provides numerous bug fixes and crash prevention measures in it's patches and most mods are built around this patch, meaning that installing such a mod in a game without this patch will most likely cause problems.
 
   
 
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