Safe
Free

perfos.dll

x86 Windows System
Verified

This is a Core Windows System File

perfos.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
perfos.dll
Size
35.5 KB
Version
10.0.20348
Architecture
x86
Source
Windows system
Part of
Windows System

Hash Verification

7f55d4100a414f977b541d5c21be4dae7b0ff501f81d3d627812f5a7933972bb
dccbbd5f1e55facdabff59b6e3cd76a4
ADVANCED

Manual DLL Download

Only if installer doesn't work

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

35.5 KB | x86

1,382 downloads

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

Official Microsoft source

Malware scanned

SHA-256 verified

Other Versions

perfos.dll
x64