Blue Screen of Death

The 'blue screen of death' is one of the most recognizable computer errors that can occur, and if you’ve ever used a PC there’s a good chance that you might have encountered a blue screen of death error already.

What usually happens is that your PC will become unresponsive for a few seconds, and then the screen will turn completely blue and an error message (that’s sometimes completely indecipherable) will appear. Your PC will then restart, and if you’re lucky you won’t have lost too much work. 

Read more: PC Technician Responsibilities

While the name ‘blue screen of death‘ started off as a bit of a joke, it hints at how scary this error message can be. If you get a blue screen of death without saving your work, the resulting reboot of your PC can make you lose any changes you've made to a document.

While some blue screen of death errors are one offs, most of the time they are an indication that there’s something wrong with your PC, and there are a number of reasons why you may get a blue screen of death error. Failing hardware, corrupted software, missing DLL files or problems with drivers can be the main culprits. 

The way to fix a blue screen of death error will vary depending on what caused it to appear. When the blue screen of death error appears you should see a code. Quickly note that down, then type it into Google (or another search engine of your choice). You’ll hopefully find that other people have encountered the same error and have posted how they fixed it. 

The good news is that in Windows 10, Microsoft has made the blue screen of death error message more useful. For a start, it’s no longer blue — it’s green. There will also be a QR code that is displayed along with the error message. Use your smartphone to scan the QR code and you should be taken to a webpage that will explain the error message in more detail, and offer advice on how to fix it.


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