Run the Wuala Setup application
A window will open asking what you want to do with a file called WualaSetup.exe. Click Run.
Follow the Setup Wizard
Once the download has finished a warning message may appear. Click Yes. The Wuala Setup Wizard will start and guide you through the rest of the installation.
After the installation has finished, you can open Wuala at any time by clicking the Wuala icon located either on your desktop or in the Start Menu.