Safe
Free

diagnosticdataquery.dll

x86 Windows System
Verified

This is a Core Windows System File

diagnosticdataquery.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
diagnosticdataquery.dll
Size
53 KB
Version
10.0.20348
Architecture
x86
Source
Windows system
Part of
Windows System

Hash Verification

eb5aa6d6048bce0018a0c263a6bb6b7d195be7494a251edcb0b0d9869a494f17
acc8653380b809747e43553723a00510
ADVANCED

Manual DLL Download

Only if installer doesn't work

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

53 KB | x86

1,279 downloads

Manual Installation Steps
  1. 1 Extract the ZIP file
  2. 2 Copy to C:/Windows/SysWOW64/
  3. 3 If needed: regsvr32 diagnosticdataquery.dll

Official Microsoft source

Malware scanned

SHA-256 verified