I Installed Ubuntu Desktop on Windows 10.
Now the grub menu is not showing windows 10 in boot menu.
Grub repair gave me the following link.
Kindly help me to recover back the Windows 10.
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Try to update the GRUB configuration file by running
sudo update-grub on a terminal. (Remember to type in your password. It does not show on the screen for security.) That should create a new GRUB configuration drive with Windows 10 included.
If that didn't fix your problem, install GRUB Customizer by following the instructions here and check if
os-prober is on. If it is not, turn it on by going to the "General Settings" page and checking the "Search for other operating systems" checkbox. Then, try running
sudo update-grub again.
Feel free to contact me if you have any issues.