hello,

I was trying to install Parrot OS on my new Windows laptop. Everything was going right but when I booted my laptop with Pendrive and ran the installer I received a screen with the message: 'Grub_file_filters' not found. How do I solve this? The laptop is Acer Nitro 7 and has been bought just yesterday.

This site might help you, Look under "BABAKAKAN". Here's how I solved it:

https://www.reddit.com/r/linux4noobs...ers_not_found/

Did you verify the download of the iso file of Parrot using an md5 checksum?
Have you tried booting it on another computer as a test?
New Acer laptops generally require a user to 'set trust' in the BIOS before an OS other than windows can be installed. In order to do this you need to set a supervisor password. Try the suggestion in the above post also.

I tried everything. But still, I get the same message everytime I try to boot it. Also I tried booting my pendrive in another system and it worked perfectly fine.

Hello . Just write the parrot os iso in DD image mode with rufus. This worked for me.

If you get this error on UEFI-booting from a flat-file FAT32 partition perhaps made with Rufus, it is because the grub2 version used does not understand the FAT32 filesystem that the linux files are now on.
To fix this, extract all the files from a Ubuntu x64 ISO's \EFI\BOOT folder and overwrite the files in the \EFI\BOOT folder of the FAT32 partition.
If you also want UEFI32 boot to work, repeat this using a Ubuntu or similar 32-bit ISO and copy the *.efi files over.

I suspect the other system boots because it is not using UEFI (i.e. it is using CSM\Legacy booting).