Let me structure each section step by step, ensuring that each part addresses the user's needs and provides practical guidance. Also, check that all the necessary information is covered without making it too lengthy. Maybe include bullet points for installation steps or common fixes to enhance readability.

Common issues: Maybe crashes, missing toolboxes, or compatibility with newer toolboxes? Solutions could involve using the MathWorks support or applying specific patches. Also, pointing out where to find support, like documentation or forums.

For the acquisition process, I need details on where to legally download MATLAB 2012. But MathWorks usually requires a license for previous versions, so maybe they have an archive or through a maintenance program. Also, mentioning unauthorized downloads is a risk here, so I should emphasize legal channels.

Installation might differ from newer versions. Need to mention system requirements for MATLAB 2012. Older OS support? Compatibility with modern Windows, macOS, or Linux? Maybe some users are on older systems that are compatible, but others might need virtualization or compatibility modes.