3、若步骤二不成功，则需要用win pe工具修复下引导了哦You do not have to use Windows PE.
You may boot the computer from LiveCD and use “efibootmgr” to fix the problems.
If “efibootmgr” is not available on LiveCD provided by UnionTech, use the versions provided by Linux Mint: https://linuxmint.com/edition.php?id=299
3、若步骤二不成功，则需要用win pe工具修复下引导了哦You do not have to use Windows PE.
You may boot the computer from LiveCD and use “efibootmgr” to fix the problems.
If “efibootmgr” is not available on LiveCD provided by UnionTech, use the versions provided by Linux Mint: https://linuxmint.com/edition.php?id=299
livecd不是完全可以解决问题
livecd不是完全可以解决问题
In case LiveCD cannot solve the problems, try using Linux Mint.
As a Linux user, I would avoid using Windows and Windows PE.
Linux users should not depend on Windows (PE).
uos^1mark
uos^1In case LiveCD cannot solve the problems, try using Linux Mint.
As a Linux user, I would avoid using Windows and Windows PE.
Linux users should not depend on Windows (PE).
If you are a true professional, you should not disdain any operating system. Windows or Linux ，just tools
If you are a true professional, you should not disdain any operating system. Windows or Linux ，just tools
I am not professional. None of the words in my post means “disdain”.
光荣榜
打造操作系统创新生态
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技术服务
应用场景
硬件/整机信息：全平台
OS版本信息：全架构
OS版本信息：桌面专业版、家庭版
问题现象
双系统安装后没有Windows的启动项/没有引导菜单。
操作步骤
1、镜像安装的系统，进bios看下有没有启动项，进入bios 里面 ，将硬盘模式 raid 改成 ahci ，然后重启观察系统是否有引导菜单。
2、若步骤一不成功，进入uos系统后，在桌面空白处右键，在终端中打开，执行命令：sudo update-grub ，执行完成后重启系统就可以看到两个选项了。
3、若步骤二不成功，可以用lived工具修复下grub引导，https://faq.uniontech.com/tools/livecd
4、若步骤三不成功，则需要用win pe工具修复下引导了哦，修复完成后需要重装系统，建议在安装的时候关闭win的安全启动，防火墙，电脑管家等。
https://learn.microsoft.com/zh-cn/windows-hardware/manufacture/desktop/winpe-intro?view=windows-11
注：所有需要在专业版上执行的命令，请先和公司确认是否可以打开开发者模式！