Safe
Free

sdiagschd.dll

x64 Windows System
Verified

This is a Core Windows System File

sdiagschd.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 Server 2022 Windows Server 2019 Windows Server 2016

File Details

Name
sdiagschd.dll
Size
80 KB
Version
10.0.20348
Architecture
x64
Source
Windows system
Part of
Windows System

Hash Verification

1e00a6ff678452fbe5e007e82c95b2d8075ab378cb5d12993da89f8da0378fb3
c7ceb5a1f22da23b718712cb252df58a
ADVANCED

Manual DLL Download

Only if installer doesn't work

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

80 KB | x64

3,088 downloads

Manual Installation Steps
  1. 1 Extract the ZIP file
  2. 2 Copy to C:/Windows/System32/
  3. 3 If needed: regsvr32 sdiagschd.dll

Official Microsoft source

Malware scanned

SHA-256 verified