Hi,
After a Windows update my (dual boot) system won't boot into fedora anymore.
Somehow the grub bootloader doesn' t start.

After booting this is what I see:

Minimal Bash-like line editing is supported. For the first word TAB lists possible command completions. Anywhere else TAB lists possible device or file completions.

grub>_


When I issue the command "exit" the Windows bootloader pops up.

I googled on this subject, but found many completely different answers.
I would appreciate any suggestion. How can I recover my system?