Download ucrtbase.dll for Windows 10 1803 (64-bit): the genuine file from Microsoft
ucrtbase.dll version 10.0.17134.677, the exact file Windows Windows 10 1803 uses, downloaded unchanged from Microsoft's symbol server and checked against its published checksum. Read what it is, then the download starts by itself.
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What you are downloading
- File
ucrtbase.dll(ZIP with README)- Version
10.0.17134.677- Windows release
- Windows 10 1803
- Delivered by
KB5003174- Build
- 64-bit
- ZIP size
- 1,014,344 bytes
- Signed by
- Microsoft
- Source
- msdl.microsoft.com (Microsoft symbol server)
- SHA-256
0797f4a5eaa5ba3c35287f0d75084a9e7805596d199b66eb00ded9d865e275b6
Before you download
- Windows repairs its own files: run sfc /scannow, then DISM /Online /Cleanup-Image /RestoreHealth in an administrator window, and install the latest update. That is the fix the ucrtbase.dll page recommends.
- Use this copy when a program needs the file in its own folder, or to compare it with yours. It must match your Windows release and build: x64 is for 64-bit programs on 64-bit Windows. A 32-bit program needs the x86 set, even on a 64-bit PC.
- Do not copy it into System32 or SysWOW64: Windows protects those folders and the next update replaces the file anyway.