Epson FX-1170: How to Add Printer Driver in Windows 7

1. Make sure your Windows Update is enabled.
2. Go to Devices and Printers, Click Add Printer.
3. Select  Add a Local Printer
4. Select Printer port then click Next.(if you are not sure with what port you are using use LPT1)
5. If your Printer is not on the list yet, Click Windows Update.
6. Wait until updates are finish.(it takes a few minutes depending on your internet connectivity)
7. Select your Printer Model, then install.

Now, If all else fail try to Reformat your PC and do the Windows Update first. That may do the work.