If the issue persists, ensure you are running the registration tool as administrator, and verify that your antivirus software has not quarantined the registration tool.
Windows 7, Windows 8, Windows 8.1, or Windows 10
If the activation fails, try running the application as an Administrator ( Right-click > Run as Administrator ). 6. Installing on Windows 10/11 (Compatibility Tips) autocad 2015 install
: Lower your Windows UAC settings to "Never Notify" to prevent permission pop-ups.
Installing today can be a bit tricky because Autodesk officially discontinued support and activation for this version on March 10, 2025 . This means that while existing installations might still work, you may face significant hurdles when trying to perform a fresh install or reactivate a license. Essential Pre-Install Checklist If the issue persists, ensure you are running
Modify the Windows Registry to temporarily lower the .NET version value:
: Temporary disable active antivirus scanning. Security software frequently misidentifies installation scripts as threats. Installing on Windows 10/11 (Compatibility Tips) : Lower
A dialog box will appear asking for activation. Activate: Click Activate .
This usually happens if Windows Update is running a background task or if your graphics drivers are locked. Restart your PC in Safe Mode with Networking, or stop the Windows Update service via services.msc before trying again.
AutoCAD 2015 hard-checks for .NET Framework 4.5. Windows 10 and 11 ship with newer versions (.NET 4.8+), which causes the installer to error out because it does not recognize the newer version.