How can i enlarge my letters on computer?

i am havring a problem with how to get larger letters on front page of my computer.also how do i get rid of security message that malware security

How can i enlarge my letters on computer?vista

Control panel-Display-Appearance-Font size

How can i enlarge my letters on computer?antispyware

Press Ctrl and roll the wheel of the mouse.
either caps or if your on word just go to the font and pick the highest number you desire
Hi Shirley to get bigger font size. Go to Control Panel--%26gt; Accesibility Options ---%26gt; Display Tab---%26gt; Click on Settings Button ---%26gt; Select custom radio button ---%26gt; Select Windows Classic(large) or Windows Classic (Extra Large) and click on ok....