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Gamebox by Bear edited this page Jul 9, 2026 · 1 revision

Installation Guide

Complete this page top to bottom before launching ONENNABE for the first time.

Step 1 — Prepare Windows Security

ONENNABE modifies Steam configuration files to unlock games. Windows and antivirus programs treat this as suspicious (false positive). You must configure security settings before installing, or the app files will be deleted.

1A — Turn Off Smart App Control (Windows 11 only)

  1. Settings → Privacy & Security → Windows Security
  2. App & Browser Control
  3. Smart App Control settings
  4. Set to Off

If it is set to Evaluating, also switch it Off. There is no way to allow ONENNABE through Smart App Control without disabling it.

1B — Add Windows Defender Exclusions

  1. Settings → Privacy & Security → Windows Security
  2. Virus & threat protection
  3. Manage settings (under Virus & threat protection settings)
  4. Scroll to Exclusions → Add or remove exclusions
  5. Add an exclusion → Folder — add all three:
C:\Program Files\Steam
C:\Program Files (x86)\Steam
C:\Program Files\Steam Unlock ONENNABE

If you use a third-party antivirus (Avast, Kaspersky, Norton, etc.), add the same folders as exclusions inside that antivirus app as well.

Step 2 — Install Steam

If Steam is not already installed:

  1. Download Steam from store.steampowered.com
  2. Install and log in to your personal Steam account
  3. Keep Steam running — ONENNABE requires an active Steam session

Step 3 — Install ONENNABE

  1. Download the ONENNABE installer from the link your seller provided
  2. Right-click the file → Run as Administrator
  3. If Windows SmartScreen shows a blue popup:
    • Click "More info"
    • Click "Run anyway"
  4. Follow the on-screen installer prompts
  5. Do not change the default installation path
  6. Launch ONENNABE from the desktop shortcut when done

Default installation path:

C:\Program Files\Steam Unlock ONENNABE\

Step 4 — Activate Your CD Key

See the CD Key Activation page.

Installation Order Summary

① Windows security setup (exclusions + Smart App Control)
② Install Steam + log in
③ Install ONENNABE
④ Activate CD Key

Common Installation Issues

Installer gets deleted after download
Your antivirus removed it. Complete Step 1B first, then re-download.

"Windows protected your PC" blue popup
Click "More info" → "Run anyway". This is a SmartScreen false positive.

App won't open after install
Right-click the shortcut → Run as Administrator. Also check that Steam is running.

WebView2 error / black screen on launch
Install Microsoft Edge WebView2 Runtime — this powers the app's interface.

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