ProxKey token driver — download & install

Genuine Watchdata WD ProxKey driver for Windows. Install it once and your ProxKey token is ready to sign on Income Tax, MCA, GST, GeM, Traces and every other portal.

Windows driver macOS driver Ubuntu (.deb) RedHat (.rpm)

Genuine Watchdata WD ProxKey installer · Windows 7–11 · macOS · Linux.

Install on Windows

  1. Download and extract the Windows zip above.
  2. Right-click WD_PROXKey_new.exeRun as administrator.
  3. Follow the wizard and finish; restart the PC if prompted.
  4. Plug in the ProxKey token and close every browser window.
  5. Reopen the browser and open your portal — the token and certificate are detected.

Install on macOS / Linux

macOS: download the ProxKey .pkg, open it and follow the installer; if macOS blocks it, allow it under System Settings → Privacy & Security, then reconnect the token. Ubuntu/Debian: install the .deb with sudo dpkg -i ProxKey_Ubuntu_driver.deb. RedHat/Fedora: install the .rpm with sudo rpm -i ProxKey_RedHat_driver.rpm. Then replug the token and restart the browser.

ProxKey not detected — fix

  1. Confirm the WD ProxKey driver installed without error, then restart the PC.
  2. Unplug and replug the token; try a different USB port (rear port, no hub).
  3. Fully close and reopen the browser — the token is read at browser start.
  4. On Windows check Device Manager → Smart card readers for the token with no yellow warning.
  5. If you switched from another token brand, uninstall its old driver — it can block the ProxKey.

Frequently asked questions

Which Windows versions are supported?

The Watchdata WD ProxKey driver supports Windows 7, 8, 10 and 11.

Do I need a new ProxKey token?

Buy the WD ProxKey → · All token drivers →