If you want to default the text will appear Underline in the Notepad. It can be turned off by set value 0.
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Enable default font style Underline.reg
The '.reg' file will enable default font style Underline.
Disable default font style Underline(Default).reg
The '.reg' file will disable default font style Underline.
Registry Entry Details:
Apply registry settings according below given steps of screenshots with related changes.
The default text in the "Notepad" appears as underlined after the changes have been made in the registry.
The default text in "Notepad" appears as normal.
First, click the 'Start' button, and select 'Run'. In the resulting dialog box, type "regedit".
Second, go to the [HKEY_CURRENT_USER\Software\Microsoft\Notepad] key, right-click on the right pane and click on "New > DWORD Value" to create a new DWORD value with the name "lfUnderline".
Third, right-click on the 'lfUnderline' DWORD value and click on "Modify".
Finally, enter the value "1" in the text box and click on 'OK'.
Other Related Tweaks
Change hypertext colors of Windows help file (For Win 98/Me).
Category : Software / Applications > Windows Applications
This setting lets you change hypertext colors of Windows help file.
Change the color of hyperlinks in Windows help file (For Win 98/Me).
This setting lets you change the color of the text, which means a new panel of help information in the Windows Help window.
Change the color of hypertexts that calls macros in Windows help file (For Win 98/Me).
This setting lets you to change the color of hypertexts that calls macros in Windows help file.
Change hypertext colors that open pop-ups in Windows help file (For Win 98/Me).
This setting lets you to change hypertext colors that open pop-ups, located in different help file, in Windows help file.
Open “.JS” files with Notepad.
This setting enables you to open a file with extension “.JS” in Notepad and have a look at it before getting it executed.