I googled a whole day for this same problem, reinstalled twice, cleaned registeries without success.. but finally found a solution!

Do the following:
1. Press windows button + r to star Run and type 'services.msc'.
2. Click the 'Standard' tab on the bottom.
3. Find 'FLEXnet Licensing.. blaa' and right click for 'Stop'.
4. Right click again for properties and set 'Startup type' to 'Automatic' and press 'Start' below.
5. Apply and you are done!

Hopefully this works. Good luck!