You try to open a program and get "MSVCP140.dll was not found." These errors look alarming but are usually straightforward — once you know what a DLL actually is and where to get the right fix.
WHAT A DLL IS
DLL (Dynamic Link Library) files are shared code libraries multiple programs reference rather than each including their own copy. When a program can't find a DLL it needs, it tells you — but the error message rarely explains where to get the fix safely.
⚠️ Never download DLL files from sites advertising "free DLL downloads." These are malware delivery vectors. The file may contain what you need plus a trojan. Microsoft DLLs come from Microsoft only.
THE SAFE FIX
Identify which package the DLL belongs to
MSVCP/VCRUNTIME files → Visual C++ Redistributable. D3DX files → DirectX. MSVBVM files → Visual Basic Runtime.
Download the redistributable from Microsoft directly
For Visual C++ errors: download the latest Visual C++ Redistributable from Microsoft's official site. Install both x86 and x64 versions.
Run SFC /scannow if it persists
Open Command Prompt as administrator. Run "sfc /scannow." This scans Windows system files for corruption and replaces damaged files automatically.
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