Prevents users from changing the size of the font in the windows and buttons displayed on their screens. If this setting is enabled, the 'Font size' drop-down list on the Appearance tab in Display Properties is disabled. If you disable or do not configure this setting, a user may change the font size using the 'Font size' drop-down list on the Appearance tab. Fix: (1) GPO: User Configuration\Administrative Templates\Control Panel\Personalization!Prohibit selection of visual style font size (2) REG: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System!NoSizeChoice