Black Screen in Win 7

I have a Dell Inspiron 1440 Win 7 Home Premium laptop which has issues. After the POST I get the normal Windows login interface. After the PW and the "Welcome" screen, all I get is a black screen indefinitely. My mouse still works, as does Ctrl-Alt-Del. When I click on Task Manager nothing happens, it just goes back to a black screen. I ran a NAV 2013 emergency boot and scan from the CD and it found and (possibly?) resolved a "Trojan.Gen.2" virus. I am looking for the Win 7 Installation disk but so far no such luck. I looked on a bunch of support.microsoft pages and nothing really stood out to me. Can yanyone help?

If you do not have a Windows 7 installation DVD, you can download a legal copy with SP1 integrated from here:

Windows 7 Direct Download Links

Make sure you get the same version you have, Home Premium, Pro or Ultimate and 32 or 64 bit. Note that Basic or Starter is not available.

I recommend using ImgBurn at 4X speed (or the slowest available) to create the DVD from the downloaded .iso file.

You can do this on any computer capable of burning a DVD.

YOU MUST HAVE A VALID KEY TO INSTALL THIS .ISO. The one on the COA sticker on your computer will work.

You can also create a bootable USB Flash drive (4GB or larger) to install Windows 7 from.

• Download and run Universal USB Installer – Easy as 1 2 3
• Select Windows 7 from the first drop down list, all the way to the bottom
• Select the downloaded Windows 7 iso file
• Select your USB flash drive
• Click Create

For techies or folks who work on computers: Create Windows 7 Universal ISO With All Editions Selection On Install with ei.cfg Removal Utility.
This will fit on a 6GB flash drive or can be burned to a DVD.

Run chkdsk then SFC as described:

How to run chkdsk or System File Checker (SFC) from the Recovery Console

• Boot your Vista or Windows 7 installation DVD
• When you see "Press any key to boot from CD or DVD", press Enter
• At the "Install Windows" screen, click on Repair your computer at lower left
• At the System Recovery Options screen, make note of the drive letter assigned to your boot drive (normally C:) and click Next
• At the Chose a Recovery Tool window, click on Command Prompt. You will be sitting at X:\Sources directory
• Run chkdsk or SFC
• If you did not note the drive letter of your boot disk, you can enter bcdedit and look at the osdevice line to see what it is.
• For chkdsk, type chkdsk c: /r and press Enter (use the letter from above if not C:).
• For sfc, type sfc /scannow /offbootdir=c:\ /offwindir=c:\windows and press Enter (use the letter from above)

Let either run to completion undisturbed.

Vista or Windows 7: If you don't have a install DVD, you can download a legal copy here:
Windows 7 Direct Download Links
Download Official Windows Vista RTM with SP1 Setup Files (32-bit and 64-bit)

Make sure you get the same version you have installed: 32 or 64 bit; Home Premium, Pro or Ultimate.