Cannot mount ntfs drive

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https://bbs.archlinux.org – Every time I try to mount my Windows 7 hdd, I receive an error:fuse: mount failed: Device or resource busyThe commands I used to try to mount all resulted in the same error:sudo mount /dev/sdb1 /mnt/ntfssudo mount -t ntfs-3g /dev/sdb1 /mnt/ntfssudo mount /dev/disk/by-uuid/C0940E83940E7BE2 /mnt/ntfsSwitching to root also did not remedy the error.  Putting the entry in fstab does not mount it at boot, giving the same error.fdisk -l reveals the following:Disk /dev/sda: 1000.2 GB, 1000204886016 bytes 255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 sectors Units = sectors of 1 (HowTos)