Most "torrents" for software this old are no longer seeded by genuine users but are hosted on sites that inject adware or ransomware into the executable.
are specifically designed to modify the AutoCAD 2005 installer so it can run natively on 64-bit Windows 10 or 11. Compatibility Mode : Some users have had limited success by right-clicking the file, selecting Properties , and setting the Compatibility autocad+2005+64+bit+download+verified+torrent+work
If you just need the functionality of 2005-era CAD, software like FreeCAD , LibreCAD , or NanoCAD offers modern 64-bit compatibility for free. Most "torrents" for software this old are no