Permanent fix of unknown filesystem error

Question

how to fix unknown filesystem entering grub rescue ????

Comments

Dear, Feridi .
It is always good to share some details as to what you were trying to do ...
Now With this error I can answer you and tell you to just flash it with a Windows ISO ... but I am sure that is not what you want .. so please tell
1. what you did which led  to this
2. what you want to achieve so i may guide you properly

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i did nothing .....

i have dual boot system Window 10 & Parrot Os ...

last night as usual when i turned on my laptop i encounterd this issue

i just want to get rid of this issue