Why are Bluescreens Blue?

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Published 2021-01-30
Dave tracks down the original developer responsible for the very first Windows Bluescreen, plus how to make your machine Bluescreen in other colors.

How to show BSOD instead of Sad Smiley Screen: winaero.com/show-bsod-details-instead-of-the-sad-s…

Download NotMyFault: docs.microsoft.com/en-us/sysinternals/downloads/no…

See Raymond's blog for a good explanation of why the CTRL-ALT-DEL screen is different from the NT bluescreen: devblogs.microsoft.com/oldnewthing/20140911-01/?p=…

See also his article on writing the original "blue screen of death": devblogs.microsoft.com/oldnewthing/20140910-00/?p=…

00:00 - Introduction
01:12 - What is a Bluescreen?
02:00 - A Famous Windows 98 Bluescreen
03:15 - Forza Bluescreens
04:00 - What causes a Bluescreen?
05:30 - Should You be able to Continue?
07:00 - It's a Driver's Fault!
08:45 - Bluescreens Over Time
09:40 - SteveB's Contribution
10:28 - Searching for JVert
12:30 - A Singular Father
13:35 - It's Caerulean, Dummy!
14:50 - LIVESTREAM info
15:12 - Redscreen

I get a lot of questions about which keyboard I'm using as well as various other camera and studio equipment questions, so here are the highlights:

CORSAIR K70 RGB MK.2 Mechanical Gaming Keyboard (Cherry MX Blue Switches)
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Sony FX3 or A7SIII Cameras
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Aputure 120D Mark II Light and Light Dome II Mini
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Glide Gear TMP100 Prompter
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All Comments (21)
  • @heftyjo2893
    As a support technician this is actually a big help for me. I get a lot of customer that ask me, "Why is the screen blue?". Now I can take a deep breath and proceed to tell them a 30 minute story. I'm sure they'll love that....
  • @MidnightSt
    "You can boot, code, and crash, all in the same color scheme!" Shame this was never used as a marketing blurb, it's great.
  • @V3ryan
    I recall with Windows 95 seeing the "This program has performed an illegal operation and will be shut down" message every so often. I especially recall a funny story of my aunt seeing that message and worried that the police were coming.
  • @Zebra_M
    Damn. I used to be thoroughly amused how unplugging my USB headset adapter used to sometimes BSOD my work laptop, blaming Windows for letting an audio driver kill the system - and while I came here to learn 'why blue', I learned that this scenario is actually very reasonable and even desirable to prevent damage. Well played.
  • @sergheiadrian
    "You can boot, code and crash all in the same color scheme".
  • Got to 11:15 (wrong John Vert) & just about shit myself laughing. Can we all just take a moment to appreciate this mans comedic genius as well as his brilliant technical mind? Thank you Dave. Deep dives & peeks behind the curtain can be incredibly dry at times but you have such an amazing capacity for storytelling that you somehow keep everything digestible. You're a gem.
  • @smokedice
    Yeah, a “small bug” in the kernel could potentially destroy the entire computer and make it unrecoverable depending on where it happened
  • @sysghost
    When Windows installers where simply white text on blue, I used to joke about it: It begins with a blue screen and it ends with a blue screen.
  • @Barnacules
    Long time no see stranger, I doubt you remember me since we didn't overlap much. I worked in the 3549 super lab in Building 26 and moved down the hallway to an office for 15 years 2000-2015. I believe I filed a few bugs against Task Manager (not sure if it was while you were there) as (jrberg). Nice to see other Microsofties putting down roots on YouTube 👍
  • @osominor419
    As a CS major with a passion for programming and computers, this channel is a gold mine!
  • @skytechbits
    Taking me back in time Dave 😏 We called it, "Blue Screen of Death" long before the internet existed. As far as printer, or any other peripheral installs, the manufacturers created their setup program to be installed before the printer was allowed to be plugged in so that Windows would not take over with Microsoft drivers. Thanks for sharing your stories. You make them fun to listen to Dave.
  • @thatpitter
    “past end of life support” XP Shutdown sound P e r f e ct
  • @maltardraco9555
    Blue Screen = Seizure Green Screen = Hard Drive Failure Red Screen = OS Death Purple Screen = VM Death Black Screen = No Power
  • @richard-davies
    Bill really handled that BSOD pretty well. Considering the insane amount of hardware and driver combinations there are these days it's amazing how stable Windows is.
  • I've always had an interest in these sort of niche topics and hearing about them from the man who built most of them is truly enthralling. Keep on making such content , highly appreciated!
  • @vk3fbab
    In the late 90s I was doing a power point presentation at university to a bunch of my programming students. Running 95 or 98. I had inserted a slide that was the image of the blue screen. They all laughed at my crash displaying on the projector. I then advanced to the next screen to their amazement. Tricked even the smartest students.
  • @sysghost
    13:01 - Now comes the question we all need the answer too: Why was the MIPS RISC box firmware screen blue?
  • @jackbust
    Got a bluescreen while watching this video, no joke.