NOTE: We currently only support US unlocked versions of 2004 on 64bit OS. European or locked US support 2004 is limited only to 32bit Windows 7, 8 and Windows 10.
Installing your existing copy of AutoCAD 2004 on Windows 10, Windows 8 or Windows 7? Follow the Longbow Converter installation steps below, then find Service Pack 1 and help with common installation and startup problems.
Using Windows 11? Follow our AutoCAD 2004 on Windows 11 installation guide.
Jump to: Installation steps · Service Pack 1 · Troubleshooting
How to install AutoCAD 2004 on Windows 10, 8 or 7

- Obtain your purchased copy of Longbow Converter
- Start the Longbow Converter tool
- Insert your AutoCAD CD into your CDRom drive
- Select the 2nd tab named “Old AutoCAD Installer Reviver“
- Using the “…” button, select the path to your AutoCAD CD
- Click “Run Old Installer”
- Read and follow all the prompts
- Once the AutoCAD setup starts, stop and read the next step…
- In the AutoCAD setup program, navigate through each setup dialog as normal, with these exceptions…
- When you arrive at the installation folder path setup dialog…
- **it’s vitally important to make sure you install to c:\acad2004 (not Program Files (x86)\AutoCAD 2004)**.
- While installing…
- If you see an error in install “.NET Runtime Optimization Service has stopped working” – simply ignore by clicking the “Close Program” button
- Do not reboot if asked to do so
- Once installed
- Do not reboot if asked to do so
- Make sure to fully close the setup program when the installation is complete.
- Back in the Converter app and make sure it’s completed the final stage of processing using the “Old AutoCAD Program Reviver” tab
- When you arrive at the installation folder path setup dialog…
- Finally, reboot your PC and run your AutoCAD as normal
- NOTE: When starting AutoCAD, if you see a warning dialog when you run saying “This program has known compatibility issues”
- Click “Don’t show this message again”
- then click “Run the Program…”
- NOTE: When starting AutoCAD, if you see a warning dialog when you run saying “This program has known compatibility issues”
Installing AutoCAD 2004 Service Pack 1 (SP1)
- Download your AutoCAD 2004 Sp1
- Copy the service pack exe installer to folder path c:\Autodesk\sp
- Start the Converter App
- select the 3rd tab named “Old AutoCAD Program Reviver“
- Using the “. . .” button, pick the c:\Autodesk\sp folder
- click “Fix Old Program“.
- Now you can run the service pack exe installer from Windows explorer as normal
Troubleshooting AutoCAD 2004 installation and startup
- 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