No internet connection, keyboard won't input, dvd drive disappeared

[RoWin7]

It seems that your Win 7 is corrupted.
Boot from any installation disk, press Shift+F10 to open a command prompt window and type:
diskpart
list volume (to find out the letter assigned to windows partition)
exit
chkdsk X: /f (replace X with the letter found with list volume)
Pay attention on the results, specially bad blocks, bad clusters, bad sectors etc.
If disk check doesn't find any problems, enter windows and do a repair install.

How would s/he type "diskpart?"

 

[RolandJS]

How would s/he type "diskpart?"

She would try external, outside of her normal Windows, boot; along with swapping keyboard and mouse, USB hookup -- all of that was probably implied.