Sommaire :
How to Install PSA Series 9.x Diagnostic Software (9.85) on Windows
This tutorial explains how to install a PSA 9.x diagnostic environment (version 9.85) directly on a Windows PC, as a native installation (no VM). It's aimed at users who want a clear method to avoid the classic pitfalls: antivirus, the AWRoot folder, interface drivers, and initial setup.
Contents
- Important: unreadable text during installation
- Before you start
- Step 1 — Extracting the archive
- Step 2 — Creating and excluding the AWRoot folder
- Step 3 — Installing the software
- Step 4 — Installing the drivers
- Step 5 — Connecting the interface
- Step 6 — Initial setup (language)
- Step 7 — Interface update (if prompted)
- Step 8 — Final check
- Useful tips
- FAQ
ℹ️ Important: unreadable text during installation
During installation, some text may display as garbled or unreadable characters. This is normal — it depends on the Windows encoding used by certain installers.
⚙️ Before you start
Before beginning, make sure you have:
- A PC running Windows 7 / 8 / 10 / 11 (64-bit)
- Extracted the provided archive (using WinRAR or 7-Zip)
- Administrator rights on your Windows session
- Temporarily disabled your antivirus and Windows Defender during installation
- Run installers via right-click → Run as administrator
🗂️ Step 1 — Extracting the archive
- Locate the downloaded archive.
- Right-click → Extract Here (or use WinRAR / 7-Zip).
- Once extracted, you'll get a folder containing the installer file.
🧱 Step 2 — Creating and excluding the AWRoot folder
- Create the folder:
C:\AWRoot - Add
C:\AWRootto the exclusions of your antivirus and Windows Defender.
➕ Excluding AWRoot in Windows Defender
- Windows Settings → Update & Security → Windows Security
- Virus & threat protection
- Virus & threat protection settings → Manage settings
- Add or remove exclusions
- Add an exclusion → Folder → select
C:\AWRoot
🧩 Excluding AWRoot in your antivirus
- Open your antivirus software.
- Look for: Exclusions / Exceptions / Exclude a folder.
- Add
C:\AWRootand confirm.
C:\AWRoot folder after installation.
💿 Step 3 — Installing the software (native installation)
- In the extracted folder, locate the installer file.
- Right-click → Run as administrator.
- Follow the wizard to the end (don't close the window before it's done).
⏳ Estimated time: 15 to 20 minutes
Depending on the package, a password may be requested (provided with your access).
🧠 Step 4 — Installing the drivers
- On the desktop (or in the install folder), locate the driver installer file.
- Double-click to start the driver installation.
- Follow the wizard to the end.
If an error appears: re-run the driver file as administrator.
🔌 Step 5 — Connecting the interface
- Connect your interface to the computer.
- Open Device Manager.
- Check that it's recognized under: ACTIA USB Devices.
- It may also appear as: USB Com Board Evolution Driver (UMDF).
⚙️ Step 6 — Initial setup (language)
- Launch the application.
- On first launch, the interface may open in a different language.
Changing the language
- If asked to check for updates: click No.
- Click the icon in the top-left corner of the main screen.
- Open Settings / Configuration.
- Choose the language option, then select English.
- Close and relaunch the application.
🔄 Step 7 — Interface update (if prompted)
- If an automatic interface update appears, let it finish.
- Do not unplug the interface during this step.
✅ Step 8 — Final check
- Connect the interface to the vehicle and the PC.
- Launch the application from the desktop shortcut.
- Check that:
- the interface is detected,
- the PSA home screen displays,
- vehicle communication is working.
💡 Useful tips
C:\AWRoot.FAQ
Why disable antivirus / Windows Defender during installation?
Some files can be blocked or deleted during copying, which leads to startup errors or an unrecognized interface. You can re-enable protection once installation is complete.
What is the C:\AWRoot folder for?
It's a folder used by the software environment. If it's deleted, moved, or blocked, the application may malfunction.
My interface isn't detected, what should I do?
Check Device Manager, reinstall the drivers as administrator, try a different USB port, and avoid USB hubs.
