Modern Keil MDK relies on the CMSIS Pack system to download device support for STM32, NXP, or Nordic chips. Cracked versions often lose the ability to connect to official servers, leaving you without necessary drivers. The Better Way: Legal and Free Keil Versions
Small projects or learning the basics of assembly and C.
Based on Eclipse and the GCC compiler, this is the official (and free) IDE for all ST chips.
Most "keygens" or cracked executables are hosted on unverified sites. These files frequently contain trojans, spyware, or ransomware that can compromise your entire workstation.