If your installation has already been impacted by a malicious application or routine that runs on startup, following these general steps:
- Run your anti-virus checker. All leading anti-virus solutions identify and repair AutoCAD virus infections.
- Start your AutoCAD-based product using the /safemode command line switch.
- Find and remove all malicious code. This process is made more difficult if you had been running as an Administrator with User Account Control (UAC) turned off. As a result your AutoCAD install folder might be compromised as well.
- Repair any affected files.
- Set the SECURELOAD system variable to 1 or 2.
- Set the TRUSTEDPATHS system variable to unique, read-only folders.
- Remove the /safemode command line switch from the command line parameters.