I had bought a desktop galaxy gx series a week ago and decided to install Ubuntu and replace windows 8 but it messed up during installation and I had to remove it from my hard drive because it was screwed being I couldn't use it unless I removed all of ubuntus partitions so I did but now when I but without the Ubuntu disk doesn't read my windows disk during boot every time I boot it says "no bootable device found or device failed" and my boot options are either Ubuntu or Ubuntu I can't even load windows recovery altho when I use try Ubuntu using the disk it and go to gpartritions it shows up as a parturition on my HDD.