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How to Install PSA Series 9.x Diagnostic Software (9.200) on Windows
Looking to install PSA diagnostic software on Windows 10/11 (64-bit) for Peugeot, Citroën, or DS? This guide covers the key steps: prerequisites, Java, the AWRoot folder, interface drivers, and troubleshooting.
Contents
🔍 Why use PSA diagnostic software?
Manufacturer-level diagnostic software (often searched for as "Diagbox") gives you access to advanced functions:
- Reading and clearing fault codes (DTC)
- Actuator tests
- Real-time measurements / live data
- Maintenance functions (resets, calibrations, etc.)
- Coding / configuration (depending on setup and interface)
⚙️ Compatibility & system requirements
- Windows 8 / 10 / 11
- 64-bit only
- Windows account with administrator rights
- Stable USB port (avoid unreliable hubs)
- Compatible PSA interface + matching drivers
🧰 Step 1 — Prepare Windows
- Temporarily disable Windows Defender and your antivirus.
- Close any unnecessary applications.
- Make sure you're on an Administrator account.
- Avoid running a Windows update during installation.
☕ Step 2 — Install Java (required)
The software generally requires Java 8.
- Java 8 32-bit
- Java 8 64-bit
🧱 Step 3 — Create and exclude the AWRoot folder
Create the following folder:
Add C:\AWRoot to the exclusions of Windows Defender and your antivirus.
💿 Step 4 — Install the software
- Extract the installation archive to a simple folder (e.g. Desktop).
- Right-click the installer → Run as administrator.
- Follow the wizard through to the end.
🔌 Step 5 — Install the PSA interface drivers
- Connect the interface to the PC.
- Open Device Manager.
- Update driver → Browse my computer for drivers → path:
🛠️ Common issues (solutions)
The software won't launch
- Check your antivirus/Defender exclusions
- Check that
C:\AWRootexists and hasn't been altered - Run as administrator
- Restart the PC
Interface not detected
- Reinstall the drivers via
C:\AWRoot\extra\Drivers - Try a different USB port (avoid hubs)
FAQ
Is it compatible with Windows 11?
Yes, in 64-bit, provided you follow admin rights, Java 8, exclusions, and driver requirements.
Why exclude AWRoot?
To prevent security software from blocking or deleting files the application needs to run.
What if the interface isn't recognized?
Reinstall the drivers via C:\AWRoot\extra\Drivers, try a different USB port, then restart.
