Seems to me that your WIndows install is really damaged. May be repairable, but doubt it. Try pressing F8 after POST to load up your Windows load options and select to load the last successful. If that fails, try again but select Safe Mode.
If still not successful, I think you may need to scrap it all and start again (hope your back-ups are up-to-date). You should get rid of your install problem if you first reformat your hard disk partition so that the current Windows installation is completely eradicated.