首先感谢大家对这个问题的支持，希望大家理解。
我在 500 GB 硬盘上创建了 3 个主分区，其中 40 GB 分配给 Windows 8.1，40 GB 分配给 Ubuntu 14.04，最后一个分区称为 /windows，大约 400 GB，用于在 Windows 和 Ubuntu 之间共享文件。在我使用 Windows 重命名 /windows 中包含的子文件夹之前，它一直运行良好。从那时起，当我启动 PC 并运行 Ubuntu 时，它会显示以下内容：
An error occurred while mounting /windows.
Press S to skip mounting or M for manual recovery.
我想像以前一样共享文件。
我是 Ubuntu 新手，只了解基础知识。抱歉我的英文编辑不够。
$ cat /etc/fstab
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/sda7 during installation
UUID=40ffb4ba-d9f4-4140-a532-66305bcac28e / ext4 errors=remount-ro 0 1
# /boot was on /dev/sda5 during installation
UUID=c8b50f53-d9e1-4f75-81e6-d45a3d1d77dc /boot ext4 defaults 0 2
# /home was on /dev/sda8 during installation
UUID=d8d19038-0e49-47e1-86d2-feca7c738dbf /home ext4 defaults 0 2
# /windows was on /dev/sda3 during installation
UUID=70BEED26BEECE616 /windows ntfs defaults,umask=007,gid=46 0 0
# swap was on /dev/sda6 during installation
UUID=47071c68-4aff-46c4-a49e-c0eae38d8e58 none swap sw 0 0