While you can download the installer, MDK-ARM requires a license for full functionality. Without a key, the software operates in Lite/Evaluation mode
You can install MDK v5.25 alongside newer versions (like v5.38) by choosing a unique installation folder (e.g., C:\Keil_v525 ). mdk-arm version 5.25 download
Because Keil frequently updates its software, finding specific older versions like 5.25 requires navigating the official Keil Product Download archive . Go to the Keil Download page. While you can download the installer, MDK-ARM requires
Verify the SHA-256 checksum if published. Common checksum for official MDK525.EXE (as per Arm records) should start with B7C3A... – always confirm on the official site. While you can download the installer
Arm does not publicly list every historical version on its main download page. Instead, they are archived. Here are the legitimate sources: