System Requirements

The first task you need to complete is to make sure that your computer meets the minimum system requirements. If your system does not meet these requirements, problems can occur, both within AutoCAD LT and at the operating system level.

Whether your Windows operating system is the 32-bit or the 64-bit version, the version is automatically detected during installation. The appropriate version of AutoCAD LT is installed. A 64-bit version of AutoCAD LT cannot be installed on a 32-bit system and vice-versa.

See the following table for hardware and software requirements.

32-bit Hardware and Software Requirements
Operating systems	Service Pack 2 (SP2) or later for the following: Microsoft^® Windows^® XP Professional Windows XP Home Service Pack 1 (SP1) or later for the following: Windows Vista^® Enterprise Windows Vista Business Windows Vista Ultimate Windows Vista Home Premium The following operating systems: Windows 7 Enterprise Windows 7 Ultimate Windows 7 Professional Windows 7 Home Premium	For more information on Windows Vista versions see http://www.microsoft.com/windowsvista/versions/ For more information on Windows 7 see http://www.microsoft.com/windows7
Browser	Internet Explorer^® 7.0 or later
Processor	Windows XP - Intel^® Pentium^® 4 or AMD Athlon^™ Dual Core, 1.6 GHz or higher with SSE2 technology Windows Vista or Windows 7 - Intel Pentium 4 or AMD Athlon Dual Core, 3.0 GHz or higher with SSE2 technology
Memory	2 GB RAM
Display resolution	1024 x 768 with True Color
Hard disk	Installation 1.8 GB	A 32-bit AutoCAD LT cannot be installed on a 64-bit Windows operating system and vice-versa.
Pointing device	MS-Mouse compliant
Additional Requirements for3D Modeling	Intel Pentium 4 or AMD Athlon processor, 3.0 GHz or higher; or Intel or AMD Dual Core processor, 2.0 GHz or higher 2 GB RAM or more 2 GB free hard disk space available not including installation 1280 x 1024 32-bit color video display adapter (True Color) 128 MB or greater, Pixel Shader 3.0 or greater, Direct3D^® capable workstation class graphics card

64-bit Hardware and Software Requirements
Operating systems	Service Pack 2 (SP2) or later for the following: Microsoft^® Windows® XP Professional Service Pack 1 (SP1) or later for the following: Windows Vista^® Enterprise Windows Vista Business Windows Vista Ultimate The following operating systems: Windows 7 Enterprise Windows 7 Business Windows 7 Ultimate Windows 7 Professional Windows 7 Home Premium	For more information on Windows Vista versions see http://www.microsoft.com/windowsvista/versions/ For more information on Windows 7 see http://www.microsoft.com/windows7
Browser	Internet Explorer 7.0 or later
CPU type	AMD Athlon 64 with SSE2 technology AMD Opteron^™ with SSE2 technology Intel Xeon^® with Intel EM64T support and SSE2 technology Intel Pentium 4 with Intel EM64T support and SSE2 technology
Memory	2 GB RAM
Display resolution	1024 x 768 with True Color
Hard disk	Installation 2 GB	A 64-bit AutoCAD LT cannot be installed on a 32-bit Windows operating system and vice-versa.
Pointing device	MS-Mouse compliant
3D Modeling Additional Requirements	Intel Pentium 4 or AMD Athlon processor, 3.0 GHz or higher; or Intel or AMD Dual Core processor, 2.0 GHz or higher 2 GB RAM or more 2 GB free hard disk space available not including installation 1280 x 1024 32-bit color video display adapter (True Color) 128 MB or greater, Pixel Shader 3.0 or greater, Direct3D capable workstation class graphics card

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