无法在双启动中启动WINDOWS 10

我的grub屏幕未显示Windows 10启动选项。 我尝试了命令

sudo os-prober

但它无法检测Windows 10 OS。 然后我对40_custom文件进行了以下更改

menuentry "Windows 10 (loader)"{
    insmod part_gpt
    search --no-floppy --set=root --fs-uuid 8600-6723
    chainloader (${root})/EFI/Microsoft/Boot/bootmgfw.efi
}

I typed the uuid of /dev/sda2 in the above menu-entry and updated the grub file using : sudo update-grub

重新启动笔记本电脑后,我得到了Windows 10(加载程序)选项,但单击它后显示错误“无效签名”。

Please find below the output of sudo fdisk -l for reference : image

I am also attaching the output of sudo blkid /dev/sda2 for reference : sda2

I also tried boot-repair but it gave the following output and could not do the needful. boot-repair

如何再次启动进入Windows?

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