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Autodesk no longer sells Inventor LT. The modern replacement is Inventor Professional (with LT features plus more). A monthly subscription costs around $250–$300 — far cheaper than buying a cracked version’s potential legal fees.

If you are struggling to activate or use Autodesk products, it is highly recommended to follow official paths provided by the software developer. Contact Autodesk Support

What (Windows 10, 11, etc.) are you currently using? Share public link

: Windows 7 SP1 or Windows 8/8.1 (Standard, Pro, or Enterprise).

If you specifically need Inventor LT 2015 for compatibility reasons, genuine licenses for older versions may still be available through authorized channels. However, note that product versions older than five versions back are no longer supported by Autodesk for technical assistance.