vmhostai.dll - Analyze and How to Fix Errors

★★★★★ Verified File (27.08.2026)

⚠️ Important Notice: VMHostAI DLL File: Essential Component for AI Virtual Machines, Manually replacing system libraries can brick future Windows updates or cause critical system failures.

Architecture:	32-bit (x86)	Compatible with 32 and 64-bit Windows
Creation date	11.08.2021 12:05:14
File version	10.0.19041.6449
Antivirus scan	✅ Clean	No viruses detected.
Digital signature	✅ Have signed	File have signature, it is original file.
Hash Integrity	✅ MD5: Verified	File Hash protection is missing.
File size	83.4 kb.	85376 bytes.

Hashes:

MD5: 3f4634fbeed6b9f949bc081bf48c02e3 ✅
SHA-1: 39d807fa003cffee36a7d3678d91e67344d0639d
SHA-256: 22f1bb7d1c8c728d5a47573edc05b01ed8e8f38fb08551a9a60fb1ab14d7f1c7
SHA-512: 5668c71256d8b7f4e3c295f93e58105cf6588f897fe33f1853eda2ec1017242ef62dbd6963d4578253a521f81f7a5f765ea4c9fa2641b4c3c446b0916e7840ae

Digital file signature `vmhostai.dll` ✅

Publisher: Microsoft Corporation
Issuer: Microsoft Windows Production PCA 2011
Encryption algorithm: SHA256
Time stamp: Sep 27 03:14:55 2025 GMT

✅ This file is compatible with 32-bit Windows and can run on ✅ 64-bit Windows (via the WOW64 subsystem).

How to Fix vmhostai.dll Errors Without Downloading

Errors related to vmhostai.dll usually happen because the file is corrupted, missing due to an aggressive antivirus deletion, or unregistered in the Windows system. You do not need to download the DLL file from third-party websites, which are often unsafe.

Follow these steps to repair the file using built-in Windows tools.

1. Run SFC and DISM Scans

Windows has built-in tools to find and automatically replace missing or corrupted system files.

Press the Windows Key.
Type cmd.
Right-click Command Prompt and select Run as administrator.
Type DISM.exe /Online /Cleanup-image /Restorehealth and press Enter.
Wait for it to finish, then type sfc /scannow and press Enter.
Restart your computer.

2. Restore the File from Quarantine

If the error started after a recent malware scan, your antivirus might have blocked the file.

Open your Antivirus program (or Windows Security).
Look for the Protection History or Quarantine section.
Find vmhostai.dll in the list.
Select Restore and add it to the exclusions list so it is not deleted again.

3. Re-register the DLL File

If the file exists but Windows cannot read it, you must manually re-register it in the system registry.

Open Command Prompt as administrator.
Type regsvr32 /u vmhostai.dll and press Enter (this unregisters the file).
Type regsvr32 vmhostai.dll and press Enter (this re-registers the file).
Restart your PC.

4. Reinstall the Associated Program

If the error only appears when opening a specific application (like a virtual machine manager or a game), the application's installer contains the correct file.

Open Settings (Windows Key + I).
Go to Apps > Installed apps.
Find the application causing the error.
Click Uninstall.
Download the official installer for that software and install it again.

5. Use Windows System Restore

If the error started recently, you can roll your system back to a time when it worked perfectly.

Type Create a restore point in the Windows search bar and click it.
Click the System Restore button.
Choose a date before the error started appearing.
Follow the on-screen prompts and let Windows restart.

To help me narrow down the best solution, let me know:

What specific program or game are you trying to open when this error appears?
Did this error start happening after a specific Windows update or antivirus scan?

📊 Diagnostics Tool: Verify Your `vmhostai.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.