[GibtheGamer]

Back-ups and ERD's are your best friend. When you go to the boot menu, does it show that you have both OS's as options? If you do, start up Windows in safe mode, and use the boot log to figure out where the problem occured and you may be able to REM the driver that messed up Windows. If you can, then you should be able to get your data back once you get a good system start up on Windows. BTW, did you partition your hard drive for another OS? And, did you enable dual booting in your BIOS/CMOS?