Quick answer
Download MSI Afterburner
MSIAfterburner466.exe · v4.6.6 · ~53 MB · free, from this site
Step-by-step guide
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1
Download the free installer
Use the button on our download page. You will get a ZIP of roughly 53 MB. -
2
Extract the ZIP
Right-click the downloaded file and choose Extract All, then open the folder. -
3
Run setup
Launch the setup file and follow the prompts. It automatically installs the correct components for 64-bit Windows. -
4
Open and confirm
Start Afterburner; it detects your GPU and is ready to use. No license key, no payment.
Is it really free?
Yes — completely free, with no paid tier, trial limit or locked features, on Windows 7 through 11. The only thing that matters is getting the genuine file rather than a repackaged one from a shady site.
What you are downloading
A ZIP of about 53 MB containing the setup file, MSI Afterburner itself, and RivaTuner Statistics Server for the overlay. Newer builds also fetch a small VC++ 2022 runtime during install.
Avoid fake “premium” downloads
Fake sites advertise a 64-bit “full version” or “premium” download to look legitimate. There is no such thing — the real Afterburner is a single free file. If a page asks you to pay or run a separate download helper, leave.