ARM provides MD5 checksums for legacy downloads. Compare this with the downloaded file using a tool like CertUtil -hashfile MDK474.EXE MD5 on Windows.
Sometimes the main Keil site redirects to the latest version. Try the Arm Developer Zone archive:
If you cannot find build 474 explicitly, MDK 5.24a only has one build – so any legitimate MDK 5.24a installer will be build 474.
First, a critical clarification: There is no official "MDK 474" version. This is a common user abbreviation referring to Keil MDK version 5.24a whose internal build number is 474.
This release was a stability-focused update to the MDK 5.2x series, addressing several bugs related to debugging, flash programming, and project management.
Unlike MDK 5, which requires downloading device packs for each microcontroller family, MDK 4 includes all supported devices in a single installation. This can be convenient for offline installations or air-gapped development environments.
Some trusted embedded forums host legacy copies, but always verify file hashes:
Recommended Forums to Ask:
To download Keil MDK version 4.74 , you generally need a valid Product Serial Number (PSN) License Code (LIC)
to access it through official channels, as it is considered a legacy version. Arm Developer Official Download Method
The standard way to retrieve older versions like 4.74 is via the Keil Product Download Requirements : You must enter a valid PSN or LIC. Keil Product Download Enter your into the provided field.
If your license supports this version (released around April 2014), the link for will be listed among the available downloads. Arm Developer Alternate (Educational) Link
If you are a student using specific university materials, some academic institutions provide direct mirrors for the evaluation/Lite version: University of Texas (UT Austin) : They maintain a downloads page which includes a direct link to mdk474.exe (approx. 590MB) for use with their TExaS examples. The University of Texas at Austin Modern Alternatives
If you do not have a legacy license, Keil typically only provides the latest MDK release (currently Version 6 or Version 5) for evaluation. Legacy Support
To download Keil MDK 4.74, you typically need a valid license or to use the legacy download portal provided by Arm. Since MDK v4.74 is a legacy version (released in April 2014), it is primarily maintained for users with existing projects or specific hardware requirements that newer versions don't support. Official Download Methods keil mdk 474 download
Registered Users: If you have a valid Product Serial Number (PSN) or License Code (LIC), you can download legacy versions directly from the Keil Product Download page.
Evaluation Users: For standard evaluation, Keil generally provides the latest version (MDK v5 or v6) on their main Downloads page.
Legacy Portal: You can often find older installers by entering your license details on the Keil Software Downloads and Installation system. Education & Legacy Links
University Resources: Some academic courses, such as those from the University of Texas, provide specific legacy links (e.g., mdk474.exe) for students working with older boards like the TM4C123.
MDK v5 Legacy Support: If you are using MDK v5 but need to support older Arm7, Arm9, or Cortex-M devices, you can download a Legacy Support Pack from the Arm Developer Documentation. Technical Details (v4.74) Description Release Date April 3, 2014 Compiler Includes Arm Compiler 5.03 update 2 (build 76) IDE µVision4 IDE Size Approximately 590 MB
Finding a direct download for Keil MDK version 4.74 is difficult because it is a legacy version. Keil currently promotes MDK v5 and v6, which include support for older devices through "Legacy Support" packs. Official Download Method
The safest way to acquire MDK v4.74 is through the official Arm Keil channels, though it typically requires a valid Product Serial Number (PSN) Maintenance Portal ARM provides MD5 checksums for legacy downloads
: Registered users can access older versions by entering their license PSN on the Keil Product Download page Legacy Support
: If you are using MDK v5 but need to support older ARM7, ARM9, or Cortex-M devices, you should download the MDK v4 Legacy Support pack from the Arm Keil website instead of trying to install the full v4.74 environment. Arm Developer Direct Link (Evaluation/Demo)
is often the most common legacy version available via direct evaluation links. You can check the Keil ARM Evaluation page
to see if v4.74 has been listed or if v4.73 suffices for your project. The University of Texas at Austin Warning on Third-Party Sources
Some search results point to unverified IP addresses or non-official repositories (e.g., 54.152.227.99 Avoid downloading executable files from these sources
Let’s assume you legally obtained MDK474.EXE. Here’s the installation walkthrough: