Step 1: Go to the Academic Software page of Ableton and click on the button 'Download Ableton Live Lite' to download the software.
Step 2: Unpack the zip file and run Setup.msi to start the installation.
Step 3: The installation starts. Click on Next.
Step 4: Accept the Licence Agreement and click on Next.
Step 5: Choose where you want to install the software and click on Next.
Step 6: Click on Install.
Step 7: Click on Finish. The software is now installed.
Before you start, you must validate your licence. If you want to start immediately and use the free version, click on Later.