The software sees the VMware virtual BIOS/MAC address instead of the physical PC hardware.
Running WinOLS 4.51 in a VMware environment is highly advantageous for ECU tuners, but it requires masking the virtual environment. By following the .vmx configuration changes, you can bypass detection, lock the hardware ID, and enjoy a stable, portable tuning environment.
Reading ECU data...
Disconnect VM from network; manually roll back Windows clock to 2020. Grayed-out checksum options Missing or unregistered DLLs
He poured another cup of coffee. It was going to be a long night. winols 451 vmware fix
Stay safe, tune responsibly, and keep your diesel clouds in check.
Did you select or "I Copied It" when first opening the VM?
VirtualBox is harder to detect than VMware for some software. Try the following commands in the guest VM’s terminal (after installing Guest Additions):
Close the VMware application entirely to prevent file locking. Step 2: Edit the VMX Configuration File The software sees the VMware virtual BIOS/MAC address
By carefully editing the .vmx configuration file and understanding how WinOLS detects virtualization, you can bypass Error 451 reliably. Start with Method 1 (VMX edits) — it is safe, reversible, and works for 95% of cases. Only venture into binary patching or registry hacks if absolutely necessary.
Save the file and change its file attributes to via Windows Properties to prevent VMware from altering it. 3. Resolve USB Interface Passthrough Issues
Boot the VM (disconnect your host internet first to prevent automatic updates). Press Win + R , type regedit , and hit Enter.
Network adapters starting with standard VMware Organizationally Unique Identifiers (OUIs). Reading ECU data
Edit the VM’s .vmx file (open it with Notepad) and add these lines to disable VMware's detection fingerprints:
To fix the issue, you'll need to make a few adjustments to your VMware settings and install a patch. Here's a step-by-step guide:
Which (e.g., Workstation 17, Player) and Guest OS (e.g., Windows 10, Windows 7) are you using?