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Q: How can I fix “License State Unknown” on Windows?

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A:
Windows Firewall may be a reason for “License State Unknown” error message.  To fix this:
  1. Go to Network and Firewall Protection tab of the Windows Defender Security Center 
  2. Select the “Allow an app through firewall” option
  3. Then select “Change settings” and then “Allow another app”
  4. Add AppsManager and Perfectly Clear. 

That should fix it.  The next time you run Perfectly Clear or AppsManager, they should properly detect the license state.

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