1. Click the Windows start menu and select Default programs.
2. Select Associate a file type or protocol with a program.
3. Highlight the .ICA file type on the list and select change program.
4. Click Browser and navigate to the following directory C:Program Files (x86)CitrixICA Client
5. Select Wfcrun32.exe , open, and then ok.
6. Verify that the file association is set to Citrix Connection manager.