Uninstalling Search Protect will solve your AutoCAD Application Error (0xc0000142) & (0xc000000c5) but you also may have Malware installed on your computer, please check out the following blog post to remove them courtesy of our technical guru: David Dembkoski.
We have noticed that Internet Explorer 11 has been causing the licensing wizard to crash (lmu.exe). In fact, you will not even be able to run the product in Trial mode. To solve this problem, you need to uninstall Internet Explorer 11 by using the View Installed Updates in the Programs & Features Control Panel.
In the dialog box, we confirmed that client was looking at the correct server and the Windows Firewall was correctly configured as noted in steps 4-6 in the Quick Start Setting up a License Server blog post.
The client machine indicated that the server was not running. A known issue is having with other 'vendors' on the server along with Autodesk products. The symptom is that the server log file will appear like it is running but it is notactually running. The solution is basically to stop the Autodesk license server and edit the license file and add a port to the license file as noted below:
SERVER TOR2UA13809X0 3CD92B5B4B2E 27001 USE_SERVER VENDOR adskflex port=2080
PACKAGE etc INCREMENT etc
Once the file has been edited, just restart the license server and the software should launch correctly.
For more info on the this issue, please check out the following posts/articles:
Recently been troubleshooting deployments for Plant Design Suite 2015. There are some issues that we are working on and one of them is the deployment not installing when AutoCAD Plant 3D OE is included in AutoCAD.