我将Windows 7安装升级到Windows 10的尝试始终以失败Error 800703ED。我强烈怀疑这是由双重启动设置引起的。我在下面的磁盘/ grub配置中插入了信息。我需要做些什么才能使升级正常进行而不会被双启动设置破坏。我不需要grub，因为我可以使用BIOS选择要引导的操作系统，因为它们位于单独的磁盘上。
Boot Info Script 0.74 [06 February 2016]
============================= Boot Info Summary: ===============================
=> Grub2 (v2.00) is installed in the MBR of /dev/sda and looks at sector 1 of
the same hard drive for core.img. core.img is at this location and looks
for /boot/grub. It also embeds following components:
modules
---------------------------------------------------------------------------
fshelp ext2 part_msdos biosdisk search_fs_uuid
---------------------------------------------------------------------------
config script
---------------------------------------------------------------------------
search.fs_uuid 2eb75a40-a660-4b81-910f-8cb9996282ca root hd1,msdos1
set prefix=($root)'/boot/grub'
---------------------------------------------------------------------------
=> Grub2 (v2.00) is installed in the MBR of /dev/sdb and looks at sector 1 of
the same hard drive for core.img. core.img is at this location and looks
for (,msdos1)/boot/grub. It also embeds following components:
modules
---------------------------------------------------------------------------
fshelp ext2 part_msdos biosdisk
---------------------------------------------------------------------------
=> Grub2 (v2.00) is installed in the MBR of /dev/sdc and looks at sector 1 of
the same hard drive for core.img. core.img is at this location and looks
for /boot/grub. It also embeds following components:
modules
---------------------------------------------------------------------------
fshelp ext2 part_msdos biosdisk search_fs_uuid
---------------------------------------------------------------------------
config script
---------------------------------------------------------------------------
search.fs_uuid 2eb75a40-a660-4b81-910f-8cb9996282ca root hd1,msdos1
set prefix=($root)'/boot/grub'
---------------------------------------------------------------------------
sda1: __________________________________________________________________________
File system: ntfs
Boot sector type: Windows 7/2008: NTFS
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files: /bootmgr /Boot/BCD
sda2: __________________________________________________________________________
File system: ntfs
Boot sector type: Windows 7/2008: NTFS
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files: /bootmgr /Boot/BCD /Windows/System32/winload.exe
sdb1: __________________________________________________________________________
File system: ext4
Boot sector type: -
Boot sector info:
Operating System: Ubuntu 16.04 LTS
Boot files: /boot/grub/grub.cfg /etc/fstab
/boot/grub/i386-pc/core.img
sdb2: __________________________________________________________________________
File system: Extended Partition
Boot sector type: -
Boot sector info:
sdb5: __________________________________________________________________________
File system: swap
Boot sector type: -
Boot sector info:
sdc1: __________________________________________________________________________
File system: ntfs
Boot sector type: Windows 7/2008: NTFS
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files:
我使用了很多免费的软件EasyBCD。它使您可以完全自定义Windows Bootloader。
我的建议是：
我已经在笔记本电脑上使用该软件在Windows 10和Linux Mint 17之间设置了双启动，经过一点点摆弄后，它的工作原理就像一个魅力。唯一的问题是它实际上是调用GRUB来启动Linux Mint的，所以在GRUB参数中，我设置了非常短的等待时间（3秒）。
另外，如果您将其与Windows 10一起使用，强烈建议您禁用Metro引导加载程序，因为它实际上可以引导Windows，要求您选择要启动的操作系统，如果选择Linux，它将重新启动计算机并调用其他操作系统的引导加载程序。所有这些都可以在EasyBCD的设置中完成。
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