Downloading software ISOs from public Google Drive folders is generally discouraged for the following reasons:

Because the software no longer receives security patches, it contains unaddressed vulnerabilities that malicious files can exploit. Why "Google Drive" Links Pose Significant Risks

Complete the installation process and restart your computer. Conclusion

This version was released during Autodesk’s perpetual licensing era, making it attractive to users trying to keep standalone legacy machines running without active subscriptions.

Using Google Drive for downloading large ISO files ensures high speeds and reliable downloads. Because this is a legacy product, it is often distributed via community drives.

: Active subscribers can typically download the current version plus three previous versions directly from their Autodesk Account Autodesk Assistant

To run AutoCAD 2013 smoothly, a computer meeting certain specifications was required. These requirements are a stark contrast to modern systems but are essential to know if you're trying to run this version on old hardware.

AutoCAD 2013 was released over a decade ago. Autodesk has long since discontinued support, updates, and official digital downloads for this version.