It will unzip the contents, (this is the folder you will need when you are doing the steps below). Once you have the zip file downloaded, open the zip file (Windows built in zipping program). Windows 10, 8.1/8, or 7 - Save the zip file to a location of your choosing. PROCEED TO STEP 3 ONCE YOU'VE COMPLETED YOUR VERIFICATION OR INSTALLATION

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 IF you do not see Smart card readers when checking, THEN follow along with the steps below. If that doesn't work, keep reading for other ideas below. Wait a few moments, then plug it back in. Once it is uninstalled, unplug the reader from your computer. It can also show up under unknown devices. 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. (For Windows 8.1 users, you'll right click Start). NOTE: If you don't see it, you can also click Start, In the Start Search line type in: devmgmt.msc.

If your smart card reader is listed, go to the next step of installing the DoD certificates. Windows 7 & 8/8.1: Right click Computer, select Properties, Device 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. Click System, select Device 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. Windows 10: Right click the Windows logo (lower left corner of your screen). Plug your CAC reader into your computer before proceeding To Verify whether your driver did or did not install, follow these instructions:

Most of the time, the New hardware wizard will install the CAC reader automatically, negating the need for you to install the driver manually. Plug in your CAC reader NOW NOTE: Please check and make sure your CAC reader installed BEFORE you attempt to follow the driver installation instructions below. When it finishes, it will prompt you to install the driver for the SCM SCR3310 or SCM SCR243 card reader. If you select the SCM SCR3310 or SCM SCR243 card reader, the installation program will first install the SentriLock Card Utility. Smartcard Reader Installation and Troubleshooting Manual Figure 1: Found New Hardware Wizard – online from Windows Update If the host system is connected and online, then choose this option as shown.

Scr3310 cac reader for mac