1. the GUI is a 3rd party tool not developed by us. if you need help read the documentation provided by the GUI's author or contact them directly
2. what are the drivers you have installed ? you probably haven't setup your system correctly or your GPU is not activated by the system/uefi by default because you have a further non-dedicated (Intel ?) GPU etc, please show the full output of "hashcat64.exe -I"
3. combinator3.bin from hashcat-utils piped to hashcat (combinator3 dict1 dict2 dict3 | hashcat -m 0 -a 0 ...) or combine the smaller 2 dicts in advance and let hashcat add the 3rd one with -a 1 directly.
2. what are the drivers you have installed ? you probably haven't setup your system correctly or your GPU is not activated by the system/uefi by default because you have a further non-dedicated (Intel ?) GPU etc, please show the full output of "hashcat64.exe -I"
3. combinator3.bin from hashcat-utils piped to hashcat (combinator3 dict1 dict2 dict3 | hashcat -m 0 -a 0 ...) or combine the smaller 2 dicts in advance and let hashcat add the 3rd one with -a 1 directly.