Siemens Pc Adapter Usb A2 Driver Windows Xp Verified May 2026

The Siemens PC Adapter USB A2 Go to product viewer dialog for this item.

However, later versions of the driver provided by Siemens were optimized for Windows 7 and 10. Paradoxically, using a newer driver on older hardware (XP) can cause the adapter to fail. The "verified" solution for XP usually involves finding a specific, older version of the driver (often version 2.0 or a legacy support pack) that respects the older OS architecture. siemens pc adapter usb a2 driver windows xp verified

Preparation

: Close all running programs. Do not plug in the USB adapter yet. The Siemens PC Adapter USB A2 Go to

Key Features:

  1. Plug in the USB A2 to your Windows XP machine.
  2. Open Device Manager (Right-click My Computer > Manage > Device Manager).
  3. Under “Other Devices”, you will see “SIMATIC PC Adapter USB A2” with a yellow exclamation mark.
  4. Right-click that device > Update Driver.
  5. Select “No, not this time” (when asked about Windows Update).
  6. Select “Install from a list or specific location (Advanced)”.
  7. Select “Don’t search. I will choose the driver to install.” (This is the critical step that many miss).
  8. Click “Have Disk”.
  9. Browse to C:\Siemens_Drivers\USB_A2 and select s7usb32.inf.
  10. Windows will warn: “The software you are installing has not passed Windows Logo testing…” – Click “Continue Anyway”. This is essential because the driver is unsigned by modern standards but fully functional.
  11. After installation, you will see: “Siemens SIMATIC PC Adapter USB A2 (COMx)” under “Ports (COM & LPT)”.