If you can’t see it immediately, restart your computer. Switch the base to Decimal in the edit dialog and enter in the value you chose from the above chart. Now either right-click on DefaultColorSet and select Modify or double-click on it to change its value. On Windows 8, you can easily personalize the lock screen image, system color scheme and the Start Screen background from PC settings, but Microsoft has not. Pick a color scheme you like from this chart and note the corresponding decimal value: Then select Accent key, right-click in the right-pane and create a new DWORD (32-bit) value called DefaultColorSet.
display logon screen if you want the logon screen to open when anyone attempts to use the computer after the screen saver opens. If you cannot find the Accent key under Explorer, create one. Customize the Windows 8 Start screen to suit your own personal style and needs. Open Registry Editor (Run > regedit), and navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Accent. If you’d like to change its background color, then it can be done from the registry, and here’s how. Logon screen (seen below) is the interface where all user accounts are displayed. On Windows 8, you can easily personalize the lock screen image, system color scheme and the Start Screen background from PC settings, but Microsoft has not provided an option to customize the logon screen background colors.
