Citrix Apps Won't Launch in Windows 8 or 10

Issue / Question

Sometimes in Windows 8/8.1/10, Citrix Receiver does not get set as the default program for opening *.ica files.

Resolution

1. Right click an ica file on the local hard drive and select Open With -> Choose Another App
2. Select "More Apps", and then click "look for another app on this PC" even if you see citrix receiver in the list
3. Navigate to C:\Program Files (x86)\Citrix\ICA Client
4. Look for wfcrun32.exe and select it then click OK.
5. Check the box "Always use this app to open .ica files"