Open Command Prompt as Administrator and run:
sfc /scannow
Then run:
DISM /Online /Cleanup-Image /RestoreHealth
This repairs any broken API Set redirection mappings. api-ms-win-core-memory-l1-1-6.dll missing
You will find many sites offering to download this .dll file. Ignore them. Because the file is an API set contract, placing a fake or wrong-version DLL into System32 can cause deeper system instability or security risks.
Q: Is api-ms-win-core-memory-l1-1-6.dll a virus?
A: No. The legitimate file is published by Microsoft. However, malware sometimes uses similar names. Always check the digital signature: Right-click the DLL > Properties > Digital Signatures tab. It should show “Microsoft Windows”. Open Command Prompt as Administrator and run: sfc
Q: Why does this error only happen with one specific game or app?
A: That app was compiled with a newer Visual Studio version that requires this specific DLL. Updating your system’s runtime libraries (Method 1) is the solution.
Q: Can I just copy this DLL from another computer?
A: Only if the other computer has the same Windows version and architecture (both 64-bit, same build number). Otherwise, you may cause “side-by-side configuration is incorrect” errors. Then run:
DISM /Online /Cleanup-Image /RestoreHealth
Q: Will resetting my PC fix the issue?
A: Yes, a full reset (“Keep nothing” option) will fix it, but it’s a last resort. Use Method 7 (In-Place Upgrade) first.
The resolution for the api-ms-win-core-memory-l1-1-6.dll error is surprisingly mundane, though it highlights the reliance modern software has on Microsoft's infrastructure. You don't need a fancy registry cleaner. You simply need the "Visual C++ Redistributable for Visual Studio."
This package is a bundle of all these tiny gears (DLLs) that modern software needs. Installing it doesn't just give you the missing file; it installs the entire mechanism, ensuring that api-ms-win-core-memory-l1-1-6.dll and all its cousins are present and accounted for in the system's library.
Sometimes the UCRT is included with newer Visual C++ runtimes.