- When we tell the story about what's happening today with browsers ten years from now, I want the thing that replaces Windows to be Windows. I don't want to wake up in a position one day where the guys at Netscape say, "Isn't Windows just that little thing that we use to put up menus and draw lines? Let's just write our own and suck it up into our client."
- Interview by CNET (May 1996)
- I think it would be absolutely reckless and irresponsible for anyone to try and break up Microsoft.
- Whoo! Whoo! Whoo! Come on! Get up, get up! Come on! Come on, give it up for me! Whoo! Whoo! Come on! Who said 'sit down'? I have four words for you. I. Love. This. Company. Yes!
- 25th Anniversary Event of Microsoft at Seattle (5 September 2000).
- We've had DRM in Windows for years. The most common format of music on an iPod is "stolen".
- Lettice, John (7 October 2004). "Love DRM or my family starves: why Steve Ballmer doesn't Get It". Software (The Register). Retrieved on 2007-04-20.
- Most people still steal music.
- Linux is not in the public domain. Linux is a cancer that attaches itself in an intellectual property sense to everything it touches. That's the way that the license works.
- "Microsoft CEO takes launch break with the Sun-Times" (1 June 2001) Chicago Sun Times
- I've got my kids brainwashed: You don't use Google, and you don't use an iPod.
- I don't really know that anybody's proven that a random collection of people doing their own thing actually creates value.
- Developers, developers, developers, developers, developers, developers, developers, developers, developers, developers, developers, developers, developers, developers.
- Steve Ballmer - Developers. YouTube. Retrieved on 2008-04-03.
- There's no chance that the iPhone is going to get any significant market share. No chance.
- CEO Forum: Microsoft's Ballmer having a 'great time'. USA TODAY. Retrieved on 2007-04-30.
- [Apple and RIM] are probably restricted, in some sense, to a certain maximum. … If you want to reach more people than that, you sort-of have to separate the hardware and the software issue.
- Worth Watching: Steve Ballmer in the heart of Silicon Valley in ZDNet (26 September 2008)
- All the consumer market mojo is with Apple and to a lesser extent BlackBerry. And yet, the real market momentum with operators and the real market momentum with device manufacturers seems to primarily be with Windows Mobile and Android.
- Ballmer sees Mac as a main competitor, iPhone as just buzz in AppleInsider (24 February 2009)
- You can have an Apple in the phone business, or a RIM, and they can do very well, but when 1.3 billion phones a year are all smart, the software that's gonna be most popular in those phones is gonna be software that's sold by somebody who doesn't make their own phones.
- TechCrunch Interview With Steve Ballmer in YouTube (24 September 2009)
- Let's face it, the Internet was designed for the PC. The Internet is not designed for the iPhone. That's why they've got 75,000 applications — they're all trying to make the Internet look decent on the iPhone.
- Ballmer: "The Internet Was Designed For The PC. The Internet Is Not Designed For The iPhone" in Business Insider (21 October 2009)
- Whatever device you use... Windows will be there. … Windows will be everywhere on every device without compromise.
- Live from Microsoft's CES 2011 keynote in Engadget (5 January 2011)
- I don't think anyone has done a [tablet] product that I see customers wanting.
- We like our model, as we are evolving it. In every category Apple competes, it's the low-volume player, except in tablets. In the PC market, obviously the advantage of diversity has mattered since 90-something percent of PCs that get sold are Windows PCs. We'll see what winds up mattering in tablets.
- Not the consumer cloud. Not hardware-software innovation. We are not leaving any of that to Apple by itself. Not going to happen. Not on our watch.
- Steve Ballmer says Microsoft plans to compete with Apple in every market in AppleInsider (10 July 2012)
- Fucking Eric Schmidt is a fucking pussy. I'm going to fucking bury that guy, I have done it before, and I will do it again. I'm going to fucking kill Google.
- Attributed by Mark Lucovsky in court documents. Carlson, Nicholas (14 July 2009). "Google Loses Prized Engineering Director". Business Insider, Inc.. Retrieved on 2011-12-21.
- In a statement, Ballmer described Lucovsky's recollection as a "gross exaggeration. Mark's decision to leave was disappointing and I urged him strongly to change his mind. But his characterization of that meeting is not accurate." (author unidentified) (3 September 2005). "Microsoft CEO: 'I'm going to f---ing kill Google'". Sydney Morning Herald. Retrieved on 2007-01-26.
- Google’s not a real company. It's a house of cards.
- 2005 court records as quoted by Kurt Eichenwald in Microsoft's Lost Decade Vanity Fair (August 2012)