Thanks for the information!
Please click on the link below to download the ISO file for the Windows 7 64-bit repair disc:
Once downloaded, you will need to burn it onto a blank CD using any image burning program. You can use a program called Free ISO Burner which can be downloaded on this link:
Start Free ISO Burner and insert a blank CD. Click Open and locate the ISO file you downloaded and then click Burn. After you have burned the disc, eject it and insert it into your affected computer. Restart the computer and set booting from the CD/DVD drive.
You will be asked to press any key to continue. Select the language and the existing Windows 7 installation. Once you come to the "System Recovery Options" screen, you can choose between several repair options. My suggestion is to go with the System Restore to restore Windows and program settings to an earlier point in time, when all worked fine. To do that, click on System Restore. You can check the "Show more restore points" check-box there so that you can see all available restore points. Choose one and continue.
If the restoration worked, your Windows 7 computer will restart and boot normally.
In case you encounter problems, I am here to help you further.