I have a Dell Inspiron with Windows 7 which was infected by what KasperskyTDSSKiller called the Pihar.c rootkit. I selected the 'cure" option and was prompted to reboot the laptop to complete the removal process. Upon a reboot, the Dell logo appeared and then the black screen with a blinking cursor. After researching similiar situations in the Bleeping Computer forums, I created a Windows 7 system repair disc from a clean machine but have been unsuccessful in getting the machine to boot from the CD. Unfortunately F8 nr F12 don't do anything when pressed. The initial Dell logo screen suggests that F12 should open the boot options but it doesn't recognize any of the F keys. The only thing I can do is press Ctrl Alt Del, which restarts my computer. Any suggestions on how I can get past the black screen would be greatly appreciated. Thanks.