Api-ms-win-core-version-l1-1-1.dll — 64 Bit

Go to > Apps and find the problem program (e.g., Office).

"I need to copy api-ms-win-core-version-l1-1-1.dll into System32." Fact: This file should not exist physically on a healthy Windows 10/11 system. It is a virtual API Set. Api-ms-win-core-version-l1-1-1.dll 64 Bit