Download ntdll.dll for Windows 10 1507 (64-bit): the genuine file from Microsoft
ntdll.dll version 10.0.10240.21161, the exact file Windows Windows 10 1507 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
ntdll.dll(ZIP with README)- Version
10.0.10240.21161- Windows release
- Windows 10 1507
- Delivered by
KB5066837- Build
- 64-bit
- ZIP size
- 1,826,000 bytes
- Signed by
- Microsoft
- Source
- msdl.microsoft.com (Microsoft symbol server)
- SHA-256
89dff2b80133b3ff3256a8eb79d1859315376ba77807e7b35189ac39801f24bd
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 ntdll.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.