You see this error message when installing the Trend Micro program on Windows:
"Installation Incomplete. Error code #1603, 3003, 0x00e0120010"
Why Did This Happen?
The installer cannot remove all old Trend Micro files on your computer
What Should I Do Next?
- Log onto your computer using an account with administrator privileges.
- Download and install the Trend Micro Remnant File Remover Tool to delete old Trend Micro files.
- After restarting, run the installer again.