psapi.dll - Analyze and How to Fix Errors

★★★★☆ Verified File (27.08.2026)

⚠️ Important Notice: PSAPI DLL: Windows API for process and performance information access. Essential for system monitoring tools. Manually replacing system libraries can brick future Windows updates or cause critical system failures.

Architecture:	other	️ Not detected
Antivirus scan	✅ Clean	No viruses detected.
Digital signature	🟡 Not signed	Signature missing. The file may have been modified.
Hash Integrity	ℹ️ Unverified	File Hash protection is missing.
File size	5.1 kb.	5231 bytes.

Hashes:

MD5: c078aa22889f19713214e2b90c39049d
SHA-1: 3ceb36a604281998bef9d9270b878b83cdbda146
SHA-256: e1faf9c863cecbb16427eb535f30319c26348805a9abab1e3b8d8b3673c456b5
SHA-512: 7ef6e31789554153415926cd27820cee84fb91064a44e686d02a65850c29c920f01c539a95b0bf06444993bf3274dd40fe8f7c1ba0da7ef01ca6c532460074e8

To fix a psapi.dll error without downloading files from third-party websites, you need to repair or restore the file using built-in Windows tools.

Run SFC Scan

Open Start.
Type cmd.
Right-click Command Prompt.
Select Run as administrator.
Type sfc /scannow.
Press Enter.
Wait for verification to reach 100%.
Restart your computer.

Run DISM Tool

Open Command Prompt as administrator.
Type DISM /Online /Cleanup-Image /RestoreHealth.
Press Enter.
This repairs corrupted system images.
Restart your PC after it finishes.

Update Windows

Open Settings (Win + I).
Click Update & Security (or Windows Update).
Click Check for updates.
Install all available updates.
Restart your device.

Reinstall the Affected Program

Open Control Panel.
Click Uninstall a program.
Select the app causing the error.
Click Uninstall.
Reinstall the app from its official source.

Run a Malware Scan

Open Windows Security.
Click Virus & threat protection.
Click Scan options.
Select Full scan.
Click Scan now.

📊 Diagnostics Tool: Verify Your `psapi.dll` File

Worried that the file on your PC has been modified by malware? Drop it into the form below. Our script will verify its file size, cryptographic hash (MD5/SHA-1), and check for a valid Microsoft digital signature.

Other versions:
️ psapi.dll 10.0.19041.3636 32-bit (x86) | ️ psapi.dll 10.0.19041.3636 64-bit (x64)
Similar files:
️dhcpsapi.dll | ️kapsapi.dll | ️dhcpsapi.dll.mui