A common issue occurs on modern systems (Windows 10/11) because they use a newer .NET Framework, causing the 2015 installer to fail.
Because LT 2015 uses an older installer technology (Microsoft .NET 4.5 and Visual C++ 2012), modern Windows 10/11 systems often reject it. autocad lt 2015 download fix
AutoCAD LT 2015 looks for .NET 4.5. If you have .NET 4.8 or 5.0 installed, the installer might mistakenly think the requirement isn't met. You may need to temporarily edit the Windows Registry (HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full) to trick the installer into seeing version 4.5, though this should be done with extreme caution. A common issue occurs on modern systems (Windows
If yes and it still fails → or switch to a modern 2D CAD alternative. If you have
: Before a fresh attempt, press Win + R , type %temp% , and delete all files in the folder to remove corrupted temporary setup data.