is a dynamic link library (DLL) associated with AutoCAD 2016

page or your manufacturer's site (NVIDIA, AMD, or Intel) to download the latest drivers. Symetri.ie 4. Reset AutoCAD to Default Settings

Replace pm16.dll from a trustworthy source (cautious)

Conclusion

The autocad pm16.dll error is frustrating but almost never a sign of hardware failure. In 90% of cases, a simple repair installation (Method 4) or re-registering the DLL (Method 2) will get you back to work within minutes.

ERROR: PM16.DLL NOT FOUND. SIMULATE? Y/N

Run as Administrator: Ensure you are logged in as an Administrator with full control permissions over the installation folder.