Grub not finding Windows Partition

[Aragorn]

Welcome to the forum!

Please see whether the following might help you…

Dual boot - missing the startup menu

There was a problem with the os-prober in GRUB, but it should in theory be fixed now. Make sure that your /etc/default/grub contains the following line… GRUB_DISABLE_OS_PROBER=false … and then run… sudo update-grub

If you do not get the GRUB boot menu, please see this post too…

Dual boot - missing the startup menu

Edit /etc/default/grub and change the line… GRUB_TIMEOUT_STYLE=hidden … into … GRUB_TIMEOUT_STYLE=menu Then, open up a terminal and run… sudo update-grub