This usually means you either have the 32-bit version of AutoCAD installed or you have already applied a later update (like 2018.1.2) which already includes these fixes.
Disable your antivirus temporarily. Sometimes security software blocks the patch from modifying the program files. Autocad 2018.0.2 Update 64-bit Download
A bug in the original 2018 release caused some versions to time out prematurely; this update fixes the licensing logic. This usually means you either have the 32-bit
The installer will extract files to your temporary folder. users encountered several "Day 1" issues
When AutoCAD 2018 was first released, users encountered several "Day 1" issues, specifically regarding the high-resolution (4K) monitor support and 3D graphics performance. The 2018.0.2 update was released specifically to address: