Iv tried installing a mod called ENB RealVision and I uninstalled it (and yes before you ask i did it right) but it uninstalled half of my damn mods with it, so i just said f**k it and uninstalled everything. Afterwords I play skyrim vanilla (Absolutely no mods) but i get this "error! bfloatpointrendertarget=1 not set in skyrimprefs.ini..." (pretty annoying because it wont go away) so I proceed to set the thing from 0 to 1 on the skyrimprefs.ini... once set, I go back on the game and the red text is gone but something seems... off... like 'the whole room of dragons reach is gone' off, just the lights are left. I go back to skyrimprefs.ini and change it back and got all my textures back but that damn red text pops back up. what do?

Try verifying your Steam install. Got to your library, right click on Skyrim, properties, local files tab, and click verfiy integrity of game cache.

If that doesn't work, you may be better off uninstalling Skyrim, delete any files left behind and do a full reinstall.

It does sound like something left over from a mod. Have you tried starting a new game, it's possible that your save game is now corrupted through uninstalling all your mods.

I think it is likely just better to do a clean uninstall. Delete everything that is skyrim and then install it fresh.

Unfortunately I tried that last night. I even re installed my SKSE files. :/ at first i thought it was just the game files after i uninstall all the mods. but iv verified the integrity at lest 3 times after re installing it twice now. I have RCRN so i might uninstall that and redo that. Would RCRN have anything to do with this?

which skyrimprefs.ini did you change? Did you read the enb page to make sure you added the right lines to the .ini IN YOUR MY DOCUMENTS FOLDER?