CAC stopped working after upgrading to Windows 10
windows
Symptoms
CAC worked on Windows 8.1 but does not on Windows 10.
Likely cause
ActivClient 6.2.0.x or 7.0.1.x is incompatible with Windows 10.
Fix
1. Right-click the Windows logo > Apps and Features.
2. Uninstall ActivClient.
3. Reboot.
4. Install ActivID 7.1.0.153 (or 7.4).
5. Reboot and test.
Sourced from militarycac.com. Rewritten for clarity.
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