Black screen after login windows 7

Hi everybody

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I have a Dell Inspiron 15R N5110 laptop.

I'm having trouble with my windows 7 right now, it's an 64 bit Ultimate version.

Recently, I installed my graphics card driver (Nvidia Geforce GT 525M) after a clean windows installation. And restarted my computer.

Everything looks fine and runs normally until the logon screen is supposed to come up. After the initial Windows loading logo, the screen goes completely black.

However, in safe mode, the logon screen comes up fine and I can login and everything works properly. In device manager, the graphics card shows up properly, but when I go to the screen resolution settings, it does not display the name of the card.

I have tried reinstalling the drivers but that didn't help. I have also tried reinstalling Windows, all windows updates and latest drivers but that didn't help. I have updated the BIOS but didn't help.

Thanks.

Dincer