Do I need a good CPU?

[tonyhere]

Less important, maybe, not to be neglected though,

Generally speaking, your CPU needs to have N + 2 threads available for GPU cracking, where N is the number of GPUs in your rig.

Source & nice read about building a good rig for hashcracking: https://passwordvillage.org/hardware.html

hey there im new to hashcat, and trying to crack a password protected pdf, but im stuck with the error "hashcat64.exe' is not recognized as an internal or external command,

operable program or batch file "

please help me out