ucrtbase_clr0400.dll

x86 Windows System

Verified

This is a Core Windows System File

ucrtbase_clr0400.dll is a critical Windows component. If it's missing or corrupted, you should repair Windows rather than replace the file manually.

Recommended: Run System File Checker

sfc /scannow

Open Command Prompt as Administrator and run this command.

Why You Shouldn't Just Download the DLL

DLLs depend on other DLLs - copying one file won't fix the chain
Runtime packages register components in Windows correctly
Version mismatches can cause more problems
The official installer handles all of this automatically

Compatibility

Windows 10/11 Windows 11 Windows 10 Windows 8.1 Windows 8 Windows 7

File Details

Name: ucrtbase_clr0400.dll
Size: 685.94 KB
Version: 10.0.20348
Architecture: x86
Source: Windows system
Part of: Windows System

Hash Verification

SHA-256 aa416a9e707be8475051ff502d20077a687d14cf3ababf4959f489a3b5bfbf8b

MD5 bfe20e1d9bebe61cd8898663fdacb74e

ADVANCED

Manual DLL Download

Only if installer doesn't work

This is a last resort. Try the official installer first.

Download ZIP

685.94 KB | x86

4,327 downloads

Manual Installation Steps

1 Extract the ZIP file
2 Copy to C:/Windows/SysWOW64/
3 If needed: regsvr32 ucrtbase_clr0400.dll

Official Microsoft source

Malware scanned

SHA-256 verified

Other Versions

ucrtbase_clr0400.dll

x64