Scaling refers to the overall size of various elements of the Modern UI including the Start Screen and Windows Store apps, as well as system tools and utilities that take full advantage of the new interface. Metro Scaler’s job is to let you to scale the interface based on screen size. You can choose a display size between 5 inch and 25 inch.
Using the tool fairly simple. After downloading the application, run the portable EXE file and then use the scaling slider to adjust the size according to your preferences. The display size appears in inches and your PC must be restarted every time you apply a new size, for the changes to take effect. One thing that really fancied me is that after changing the scaling, the Modern UI interface doesn’t lose any kind of sharpness at all. There is no ‘zoomed out’ and pixelated feel; everything looks crisp and vivid. To change the size, you need to click the Scale button at the bottom-right, and then simply restart your PC. If you wish to restore to factory defaults, just hit the ‘Reset to default’ button.
The screenshot below demonstrates how the Start Screen looks after decreasing the scale size of Modern UI on a 24-inch screen. Note how all tiles have become larger to give the same overall look that you would get on a smaller screen.
Metro Scaler is an open source application that works on Windows 8 only. Both 32-bit and 64-bit editions of the OS are supported. Testing of the tool was carried out on Windows 8 Pro, 64-bit.