Problems with Msi GeForce GTX 750 TI

Hi everyone.
Yesterday I bought a Msi GeForce GTX 750 TI and put it in my PC.
As soon as I put it on, I see some problems: the bios starts and the starting up of the pc goes fine until it comes to putting the password. Here I see the screen which seems zoomed in, and after i put the password...the screen goes completely black. With nothing on it.
I cannot see where the problem is so I would like to get your help with this thing, can you imagine what i have to do? I even tried to install the drivers but it doesn't work since i cannot go to the desktop and actually use the pc.
Thank you in advance for your help!

What were you using for graphics before?

The way I would usually install a new graphics card is:

Download (but do not try to install) the latest drivers for the new graphics card.

With the old card (or onboard graphics) in place, uninstall the drivers for the old card.

Power down the PC.

Install the new graphics card.

Power up the PC. You ought to be able to boot into Windows, but you may get the Microsoft Basic graphics drivers.

Install the new graphics drivers.

Reboot, even if you aren't asked to.

Enjoy the new graphics.

I don't actually remember what i was using before (it was a geforce but i don't remember the number), but when that happened I put the old graphic card back and it gave me the same problem as i said before with the new graphic card. Any ideas? thank you so much!

In that case you must boot into Safe Mode and manually replace the driver for the graphics card into Microsoft Basic Display Adapter. This will allow you to boot normally with basic graphics and then install the driver. Restart the computer several times before it fully loads Windows. Eventually you will get the troubleshooting screen. Select Advanced Startup Options and then Safe Mode. When in Safe Mode, click on the search icon and type device. Click to open Device Manager. Expand display adapters and right-click on the graphics card. Select update drivers and last choice. Select last choice until you see a list of devices. Uncheck the Show compatible devices to see all manufacturers. Go to standard display adapters and select Microsoft Basic Display Adapter. Windows may give you a warning that it cannot verify compatibility, install it anyway. Then restart in normal mode and install the driver.

I would use Display Driver Uninstaller from safe mode.