I deleted my windows partition today because I got a virus in windows. Now I cant load any operating system. I have tried to reinstall windows 7 and xp from cd and usb stick I reset my bios to fail safe mode and still cant load any thing. Does any one have any suggestions I have the Gigabyte GA-Z68X-UD5-B3 mo board and sandy bridge processor. I have the bios set to load from 1usb fdd 2 cd. Please let me know what you think I have been tearing my hair out for hours now!
Have you got any form of backup of that partition?
Another crazy idea, but this would depend on what the end result is your trying to achieve - i.e. restore the system back to its previous state or are you just trying to get your Mac OS working again?
If it's the latter, then you could consider installing a version of linux, and use the Grub boot loader and then create an entry for your Mac OS, if the Grub installer doesn't sort that out automatically.
That might be an option to consider if you get really stuck...
I am guessing from your last reply that you don't have much available in terms of bootable windows discs ?
What operating systems have you got available to you and in what format?
i.e. source media and installation files?
As another random point - if the deleted partition and physical drive that holds it has not been modified much since your mistake, you might be able to recover it using a drive repair tool - eg: something like partition magic (which is a Windows product, not sure if there's a Mac version).