CAC Reader for Mac Pro Download Full Version {UPDATED} 2022

CAC Reader for Mac Pro Download Full Version {UPDATED} 2022

Plug your CAC reader into your computer before proceeding Download 2022

CAC Reader for Mac Right click Computer, select PropertiesDevice Manager link (upper left corner of the screen), scroll down to Smart card readers, select the little triangle next to it to open it up.  If your smart card reader is listed, go to the next step of installing the DoD certificates.  NOTE:  If you can’t don’t see it, click Start, In the Start Search line type in:  devmgmt.msc.  (For Windows 8.1 users, you’ll right click Start.

XP:  Right click My Computer, select PropertiesHardware tab, Device Manager button, scroll down to Smart card readers, select the + next to it to open it up.  If your smart card reader is already listed, you can go to the next step of installing the DoD certificates.

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If it did not install correctly…  Try this first:  Go to Device Manager (Instructions are above), scroll down to Smart Card readers, right click the CAC reader that shows up below Smart Card Readers.  It could also be under unknown devices.  Select Uninstall.  It will give you a message.  Once it is uninstalled, unplug the reader from your computer.  Wait a few moments, then plug it back in.  It “should start to install itself.  If that doesn’t work, keep reading for other ideas below.

IF you do not see Smart card readers when checking, THEN follow along with the steps below.

To install a driver onto your computer for a CAC reader, you need to first download the correct driver for the hardware you purchased, I have drivers for the most common USB Readers, Keyboard, laptop, & desktop card readers


  Unzipping – the driver

Windows 7, Vista, or XP- Save the zip file to a location of your choosing.  Once you have the zip file downloaded, open the zip file (Windows built in zipping program).  Copy the folder inside to a new folder.  It will unzip the contents, (This is the folder you will need when you are doing the steps below).  You can also use the Extract All Files button (on the left under Folder Tasks, under File, Extract All).  It will then ask where you want to save the file too.  I recommend just putting a backslash ( \ ) at the end of the location already on the screen.

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WinZip- Use the Extract button.   It will ask you where you want to save the extracted files to, I recommend your desktop.  Click the desktop icon on the left.  Push the little yellow folder in the upper right corner of this active window.  It will prompt you for a name for the folder (type in CAC Driver).  Hit OK, then select Extract (lower right corner of this window).  You should now see your new folder on your desktop to open up.  Keep this for a later step.

Updating the Driver –  Example is for an SCR-331

  • Windows 7, 8, & Vista – Right Click Computer, Select Properties
  • Click the Device Manager link (on the left side of your screen)
  • Select the triangle next to Smart Card Readers
  • Right click the SCRx31 USB Reader, select Update Driver software
  • Browse my computer…  Select Browse, then desktop (or wherever you made the folder)
  • NOTE:  One person had to select “Search automatically for updated driver software” (This is very rare)
  • Select the folder (if using the firmware update driver below, stop at the driver folder, do not ‘dig’ down to AND or Intel folders) and then OK.  Next
  • Your driver will be installed.


Windows XP – Right Click on My Computer, Select Properties,

Go to the Hardware tab, Select Device Manager,

Select the + next to Smart card readers.

Right click on SCR33x USB Smart Card Reader.

Select Update Driver, then No, not at this time, Next,

Select Install from a list or specific location (Advanced), Next, Unselect Search removable…,

Select Include this location in the search:, now hit Browse, find the folder we made a few moments ago.

All you have to do is select the folder and hit OK, Next, It should do the rest on its own.  Select Finish when complete.

Updating the Driver – for IOGear GSR-202 reader


  • Plug your IOGEAR CAC reader into an available USB port
  • Allow Windows to load the generic driver
  • Go to the IOGear website and download the driver for GSR 202 CAC Reader to your desktop
  • Create a folder on the desktop to extract the driver’s zipped files
  • Unzip the file to the folder you’ve created
  • Go to Device Manager
  • Select the CAC reader
  • Right click the driver
  • Select properties
  • Select update driver
  • Select Browse
  • Select the IOGear driver from the desktop folder. This is the unzipped IOGEAR folder
  • The driver gives you two choices: 32 bit and 64 bit. (this must match your version of Windows)
  • Install the driver
  • Insert your CAC into the CAC reader
  • The yellow light on the CAC reader should blink rather than remain a solid yellow
  • If the yellow light blinks on the CAC reader, then the computer has added the smart card as a device and
  • the card will work properly


(Requires a physical Windows computer, Mac using Bootcamp, or LPS (see next sentence below).  It will NOT work in virtual Windows (examples: VMware, Parallels, or Virtual box)).

The firmware update “should” fix the following problems:

  • A. Card reader is not recognized
  • B. Shows up as “STCII Smart Card Reader
  • C. Shows up as “USB Smart Card Reader” (not necessarily a problem)
  • D. Does not read your “Gemalto TOP DL GX4 144”, “Oberthur ID One 128 v5.5 Dual” CAC.
  • E. Does not read your CAC when using your Mac
  • F. Trying to use the Windows 7 built in Smart Card service instead of ActivClient.


NOTE:  We are hearing more and more Mac users having problems with the SCR-331 reader.  A recommendation is to get a Mac compatible reader.

Installation Instructions

1. Download update file from MilitaryCAC or Identive
2. Unzip the downloaded file (by Right-clicking and selecting Extract All)
3. Update the driver present in the “driver” folder (by following guidance above)
4. Once the driver is updated, Run FWUPDATE.EXE (lightning bolt) in the “app” folder to update the firmware.  Select the default choices.
5. Close all programs, restart your computer

NOTE:  If you computer fails to recognize the CAC reader driver, you may need to try a different computer to do the update.

Now your SCR-331 reader can be used with Windows 8, 7, Vista or Mac.

(V1 ONLY (doesn’t have V2 after SCR-3310 on the label))

(Requires a physical Windows computer, Mac using Bootcamp, or LPS (see next sentence below).  It will NOT work in virtual Windows (examples: VMware, Parallels, or Virtual box)).
Intel based Macs can update the firmware using LPS (instructions on PDF page 37 (document page 34)) Video instructions


 NOTE:  DO NOT use this update on a V2 reader.  There is no firmware update for a V2 because it is already updated.

Click on FWUpdate.exe, this will update your firmware to version 5.26

CHECK SERVICES to make sure Smart Card is running

(This Video shows a very basic version on how to start the service)

If your CAC reader is still not seen by ActivClient, make sure that the Smart Card service is running.

Here’s how:  Go to: StartRun (in XP), Start Search (in Vista), Search programs and files (in Windows 7), Right click Windows “start button” select Run (Windows 8.1), type: Services.msc   Scroll down to Smart card, double click it and set it to automatic and click Start


If you are unable to start the service; It doesn’t show up; ActivClient still says no reader attached; or it acknowledges you have a CAC in the reader (but you can’t access it) follow these registry edits below.

Windows 8 & 8.1

Automated method (double click the .reg file inside the .zip folder)

Windows 7 & Vista

  1. Automated method (double click the .reg file inside the .zip folder) from MilitaryCAC
  2. Automated method (with instructions) from Lazybit


Manual method for Windows 7 & Vista systems (mirror your registry settings to the PDF links below for your specific version of Windows).

Windows XP

  1. Automated method (double click the .reg file inside the .zip folder)
  2. Alternate cure for XP (Requires your original XP installation CD)
  3. Anytime you make changes to the Registry it is a recommended you back it up first
  4. If ActivClient still does not see the CAC reader, try these ideas (if they don’t work, your only other option is reloading Windows onto your computer).