When I try to open the Windows Partition from Ubuntu I receive the error:

Unable to mount 55 GB Filesystem
Error mounting: mount exited without exit code 13: ntfs_mst_post_read_fixup_warn:
magic: 0x04010400 size: 1024 usa_ofs: 1026 usa_count: 1026: Invalid argument
Record 6 has no FILE magic (0x4010400)
Failed to open inode FILE_Bitmap: Input/output error
Failed to mount '/dev/sda2': Input/output error
NTFS is either inconsistent, or there is a hardware fault, or it's a 
SoftRAID/FakeRAID hardware. In the first case run chkdsk /f on Windows then reboot 
into Windows twice. The usage of the /f parameter is very important! If the device 
is a SoftRAID/FakeRAID then first activate it and mount a different device under 
the /dev/mapper/directory, (e.g. /dev/mapper/nvidia_eahaabcc1). Please see the 
'dmraid'  documentation for more detail.

Additionally, I can't open the Windows Partition. I've tried updating it many times but it won't show up on GRUB.

Does anybody know what all this means? And how I might fix it?

I thank you for any help in advance