1. Click the Start bar, type exactly: regedit
2. Click the application that launches as Best Match
3. Click yes to the popup that asks if you want regedit to make changes
4. In regedit, on the left there is a folder structure. Navigate to HKEY_CURRENT USER > Software > Google > Web Designer > Settings
5. Right click in a blank space on the right, and choose New > DWORD (32-bit) Value
6. Where it says "New Value #1", replace this with zoom_percentage
7. Right click on this, and choose the first option, Modify...
8. For Value, enter 50
9. Quit and load GWD. If the UI is too small or too large, adjust the 50 to another number between 0 and 100, and reload GWD.