How to Fix Missing or Broken DLL Errors on PC (4 Solutions) 😺

Hello beautiful people! 👋 Yosh here. Game or app won't start because a .dll is missing or corrupt? You're in the right place. Dynamic Link Libraries are shared files Windows loads at startup — when one breaks, the whole program stops. These four official solutions fix most DLL errors without shady download sites. Nando gives it a paw of approval. 😼

Never use DLL mirror sites. Download only from Microsoft, your game store (Steam/Epic/GOG repair), or GPU vendor sites. Random "fix DLL" pages bundle malware and wrong file versions.
Fix missing or broken DLL errors on Windows PC

How to Fix Missing or Broken DLL Errors on PC (4 Solutions) 😺

DLL errors usually mean a runtime dependency is missing, your antivirus quarantined a game file, or Windows system components corrupted after an update. Work through the four solutions below in order — most players never need step 4.

Why DLL errors happen

  • Incomplete game install — interrupted update or corrupted download
  • Antivirus false positive — security software deletes steam_api.dll or engine files
  • Missing Visual C++ / DirectX — runtimes uninstalled by "PC cleaners"
  • 32-bit vs 64-bit mismatch — 64-bit Windows still needs x86 runtimes for many games
  • Corrupted Windows files — rare, but SFC/DISM fixes underlying system DLLs

Solution 1 – Repair the game and fix antivirus blocks

Start with the program that reported the error — the DLL often belongs inside that install folder.

  1. Verify game files — Steam → Properties → Installed Files → Verify integrity; Epic/GOG have similar repair tools
  2. Check Windows Security quarantine — Virus & threat protection → Protection history → restore false positives from your game folder
  3. Add a folder exclusion — only for installs you trust (Steam/Epic/official publisher paths):
    • Windows Security → Manage settings → Exclusions → Add folder → select the game's install directory
  4. Reboot and launch again before moving to runtime installs

Solution 2 – Install Microsoft Visual C++ Redistributables

Errors naming vcruntime140.dll, msvcp140.dll, or MSVCR120.dll almost always mean missing VC++ packages.

  1. Open the official page: Visual C++ Redistributable (Microsoft)
  2. Download and install vc_redist.x64.exe and vc_redist.x86.exe (2015–2022)
  3. Install legacy 2010/2013 packages from the same page if an older game still errors
  4. Reboot — side-by-side assemblies register at restart

Solution 3 – Install or repair DirectX

Games referencing xinput1_3.dll, d3dx9_43.dll, or similar need the legacy DirectX End-User Runtime.

  1. Download from Microsoft: DirectX End-User Runtime
  2. Run the installer as administrator → complete setup → reboot if prompted
  3. Press Win + R, type dxdiag, and confirm no errors on the Display tab

Modern DirectX 12 comes with Windows and GPU drivers — this step repairs older DirectX 9/10/11 components many PC games still call.

Solution 4 – Repair Windows system files (SFC + DISM)

If runtimes are installed but errors persist, repair corrupted Windows components:

  1. Open Command Prompt as administrator
  2. Run: sfc /scannow — wait until verification reaches 100%
  3. Then run: DISM /Online /Cleanup-Image /RestoreHealth
  4. Restart your PC and test the game or app again

Common DLL names and what they mean

  • vcruntime140.dll / msvcp140.dll → install VC++ 2015–2022 (Solution 2)
  • xinput1_3.dll / d3dx9_*.dll → DirectX End-User Runtime (Solution 3)
  • vulkan-1.dll → update GPU drivers or Vulkan runtime — full Vulkan guide
  • 0xc000007B popup → often mixed x86/x64 runtimes — 0xc000007B fix

What NOT to do

  • Don't paste DLLs from another PC — version mismatch causes new crashes
  • Don't use "DLL fixer" websites — high malware risk
  • Don't drop random DLLs into System32 — breaks other programs and Windows updates
  • Don't trust registry cleaners promising one-click DLL repair

FAQ

Only one game shows a DLL error?
Verify that title first (Solution 1). Other games working means your global runtimes are probably fine.

Antivirus deleted my DLL — is the game unsafe?
Steam/Epic installs trigger false positives sometimes. Restore from quarantine, verify files, then exclude the folder if scans keep deleting legitimate files.

Error appeared after Windows Update?
Reinstall VC++ x86 + x64, then run SFC/DISM. Updates occasionally break side-by-side assemblies.

Still broken after all four solutions?
See our 10-step PC game error guide for overlays, GPU assignment, and clean reinstall paths.

Related: Game Fixes · Windows

More PC tips: PressCatToStart – from Yosh 😼

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