Install 32bit AutoCAD 2009 LT on Windows 10, Windows 7, Windows 8 and Windows 8.1

NOTE: This blog post specifically solves issues related to these error messages on installation…

  • “This operating system is not supported by AutoCAD LT® 2009”
  • “You cannot install this product on the current operating system”
  • “You are attempting to use a 32-bit installer on a 64-bit operating system”
  • “This is a 32-bit AutoCAD LT® 2009. It cannot be installed on 64-bit Windows”

Installing 32bit AutoCAD LT 2009 on Windows 10, Windows 7, Windows 8 or Windows 8.1 64bit can be very easily defined in these short steps…

NOTE: These steps do not bypass normal Autodesk licensing/authorization, you should expect to use your own serial numbers in the normal way.

  1. Obtain your copy of the Longbow Converter here
  2. If you have CDs (if not check (3) below):
    1. Using Windows Explorer, copy Disk 1 of your AutoCAD LT 2009 CD to your hard drive, to a folder path c:\Autodesk\AutoCADLT2009
    2. If you have more CD’s, copy them all directly over the top of Disk 1, overwrite all files in your previously copied c:\Autodesk\AutoCADLT2009 folder
  3. If you have a single self extracting exe downloaded from Autodesk
    1. Run the exe, it will ask to unzip to a folder inside of c:\Autodesk, make a note of the folder for later use (we’ll refer to it from here as c:\Autodesk\AutoCADLT2009), now click OK. Wait until all of the files have extracted, when they do, the AutoCAD LT 2009 setup will automatically launch – simply close it and move to the next step.
  4. Now, start the Longbow Converter tool, select the 1st tab, pick the c:\Autodesk\AutoCADLT2009 folder, and click the Convert button.
  5. Once the conversion process is complete, click Install/Run Setup to start setup. Simply install as normal.
  6. Windows 8, Windows 8.1 and Windows 10 users: Once the installation process is complete, go back to the Converter, select the 3rd tab, pick the newly installed C:\Program Files (x86)\AutoCAD LT 2009 folder, then click Fix
  7. Now you can happily run your AutoCAD LT 2009 32bit on Windows 10, Windows 7 and Windows 8.


– If you are unable to activate your product, or the activation process crashes:

– If you have crashing problems using the File->Open or File->Save dialogs inside of AutoCAD please read this blog entry on the File->Open or File->Save Crash in AutoCAD

Copyright 2015 (c) Longbow Software

4 thoughts on “Install 32bit AutoCAD 2009 LT on Windows 10, Windows 7, Windows 8 and Windows 8.1

  1. Holas

    Tengo instalado el mi laptop autocad civil 3d land desktop 2009 en windows 7 y me funciona re bien, ahora mi cinsulta es la siguiente; salio la actualizacion de windows 10 y la actualizacion es gratis, si actualizo mi pc de windows 7 a windows 10 funcionara bien el autocad cil 3d land desktop 2009?????.


  2. Hi, what if one already has Autocad installed and working with Windows 8.1 and you upgrade to Windows 10.
    Clicking on Autocad, it starts up but fails to run in Win10, crashing out. I used your software to get it working fine in Win8.1.
    Can I use your software now in Win10 as per above directions, without having to go re-install Autocad 2009 and needing to go get another activation key?
    Bit worried that they will refuse an activation key due to my 2009 software having being phased out by Autodesk.

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