License OK button greyed out

Your license managed has the OK button greyed out, however there are still available licenses.

Resolution:
- Go to C:\Program Files (x86) > Common Files > BIComponents and ensure this folder is full read/write access
- On Windows 10, do a further check to make sure that the PLDONGLE.dll within this folder is not marked as read only
- Launch the License Manager from the start menu
- Perform serialisation
- Try and launch the Report Manager

Additional Steps if Required
- Deleted the PLDONGLE.dll from Step 2 above
- Launch the License Manager as an Administrator with the right-click method
- This should bring up a installation screen that you should allow to run
- Finally, run a Compact and Repair from the File > Compact Metadata menu of the License Manager