If I lowered my settings, wouldn't the whole scenery not look good at all?
The settings are there for the precise reason that, if you use memory-hungry airplanes that eats up most of your memory, you can CHOOSE between the scenery quality, and the crashes.
As explained, many times already, FSX (being a 32 bit app) will NEVER, EVER use more than 4GB AT MOST (it cannot really use even 4GB entirely) and this is not a limit that can be ignored.
The SUM of your settings, your installed add-ons, your AI traffic, everything you see and everything you have in FSX, CANNOT exceed this amount, or you WILL get crashes and OOM messages, so you MUST compromise on something.
That's why I offered you many solutions:
- Use a less memory-hungry airplane
- Lower your settings, especially the ones related to terrain range
- Don't use HD textures
- Use DX10