Oblivion crashes on startup (clean install, no mods)

[Archgaull]

After a period of nonactivity, I'm attempting to play Oblivion again. I just installed it today, and I've done nothing to the data file, or game file. There are no mods installed, and yet somehow the game stops working immediately, before I even get access to the software logo screen.

It goes into full screen, is black for a second, and then immediately freezes and I get an "Oblivion has stopped working" error.

My specs:

Windows 7 Ultimate 64bit.
Intel i5-4690K stock speed.
EVGA GTX 750ti FTW/ACX Cooling
2x4gb 1866MHz G.Skill Sniper Series RAM
1280x1024 screen format.

[iwaloa]

So the launcher comes up, but after you press play it goes dark? If that's the case try deleting your Oblivion.ini file and let the game generate a new one for you. Try disabling HDR.

[Archgaull]

Thank you, for whatever reason the disabling HDR immediately fixed the issue, didn't even have to drop the .ini

[Captain Martin]

I fixed this by using a RAM extender, which allows Oblivion to use more ram than it tries to. I used http://www.nexusmods.com/oblivion/mods/32405/?

Just in case you want to play with HDR :D