Could Not Be: --- Call Of Duty Black Ops 3 The Additional Dll

This is the simplest fix. If the installer doesn't have permission, it cannot register DLLs.

: Open Windows Security , go to Virus & threat protection , and check your Protection history . If you see a recently blocked file related to Black Ops 3 , select "Restore". --- Call Of Duty Black Ops 3 The Additional Dll Could Not Be

Perform a of Windows (disable all non-Microsoft services) and re-test. If the error disappears, a background service or overlay (Discord, MSI Afterburner, Razer Cortex) is conflicting. This is the simplest fix