AutoCAD Error Aborting: There is a Problem With the Installation and AutoCAD Cannot Continue (Starting F/X CAD After Uninstalling an Older Version)
Updated on: February 17, 2026
Issue
You saw the following error message when opening a newer version of F/X CAD after uninstalling an older version of F/X CAD or AutoCAD:
AutoCAD Error Aborting
There is a problem with the installation and AutoCAD cannot continue.
This error may occur if the registry cleaner software has removed or altered registry keys that are required to run AtoCAD.
To restore the required registry keys, you will need to reinstall AutoCAD using the Add/Remove Program functionality in the Windows Control Panel.
We've seen this issue occur most commonly with users who are attempting to use F/X CAD 2026 after uninstalling an older version.
Cause
The older version of F/X CAD or AutoCAD may not have uninstalled properly, which is interfering with the newer version's ability to run properly.
Solution
Follow our steps to uninstall and reinstall your newer version of F/X CAD.
When reinstalling F/X CAD, ensure that you're using the latest installer for your year version. Find your installer here.