First we’ll back up your registry settings, so you can reverse the changes in case you don’t like them later. Then we’ll simply update the registry with a .reg file.

  1. Press Win+R.
  2. Type in regedit and press Enter.
  3. Go to File > Export… to save the registry file somewhere on your hard drive.
  4. Open Notepad and copy and paste the following into it: Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Fonts] “Segoe UI (TrueType)"=“““Segoe UI (TrueType)"=“““Segoe UI Black (TrueType)"=“““Segoe UI Black Italic (TrueType)"=“““Segoe UI Bold (TrueType)"=“““Segoe UI Bold Italic (TrueType)"=“““Segoe UI Historic (TrueType)"=“““Segoe UI Italic (TrueType)"=“““Segoe UI Light (TrueType)"=“““Segoe UI Light Italic (TrueType)"=“““Segoe UI Semibold (TrueType)"=“““Segoe UI Semibold Italic (TrueType)"=“““Segoe UI Semilight (TrueType)"=“““Segoe UI Semilight Italic (TrueType)"=”” [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\FontSubstitutes]“Segoe UI”=“Verdana” Replace Verdana in the last line with the name of the font you want to use as your system default. You might have to open your Fonts folder (search for “fonts” in the Windows taskbar) to get the full, correct name of the font.
  5. Click File > Save.
  6. Change the “Save as” type to “All Files.”
  7. In the File name field, give the file a .reg extension. You can name it anything, as long as it ends in .reg.
  8. Click Save.
  9. Double-click the registry file you just created to run it. You’ll be prompted to allow the file to make changes to the computer and confirm you want to continue, then get confirmation the changes were successfully made.
  10. Restart your computer to see the font change applied across Windows 10. Just don’t change the default font to something like Wingdings, lest you render your system completely unreadable.

Customize Windows 10

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Create Custom Keyboard ShortcutsMake Windows 10 Look and Feel Like Windows 7Change the Default Windows FontTurn Off Notification and System SoundsChange Your Desktop Background in Windows 10Change the Icon SizeGive Windows 10 a Dark ThemeMake Your Own Windows 10 ThemeHide Your Name on the Login ScreenAdd Another Column to the Start MenuGet Mac-Like File PreviewsAdd My Computer Icon to DesktopEdit Photos to Fit as BackgroundsAdd Accent ColorsCustomize Autoplay MenuInstall and Delete FontsCustomize the Action CenterDisable Transparency EffectsGet Classic Solitaire and MinesweeperChange the Look of Windows 10 BooksAdd a URL Field to the TaskbarAdd Clocks from Multiple Time ZonesGet the Old Volume Control BackDisable Windows 10 Startup DelayAdd Quick Contacts to the Start MenuShow Hidden Files and FoldersEnable Spatial SoundBest ThemesAll Windows 10 TipsChange the Login Screen BackgroundInstall New Desktop Themes