Seriously, for the love of God, PCWorld has you do so much just to boot into Safe Mode and it's so unbelievably torturous and will so make you want to stab your eyes out with forks (they didn't even have the simple courtesy to turn their many needless steps into a perhaps easier-to-read list, instead pushing you through a gigantic wall of text that barely passes for a normal paragraph) using both hands at once I'm quoting it just for others to share in my sheer horror (emphasis mine, and oh, do I emphasize! [Bracketed step numbering like so] is also mine.):
Step 1: Enter Safe Mode
[in which I've scraped out two paragraphs of useless fluff you can google which has absolutely nothing to do with how to actually boot into Safe Mode]
Sadly, Microsoft has turned the process of booting into safe mode from a relatively easy process in Windows 7 and Windows 8 to one that is decidedly more complicated in Windows 10.  To boot into Windows Safe Mode, first click the Start Button in Windows 10 and select the Power button as if you were going to reboot, but don’t click anything.  Next hold down the Shift key and click Reboot.  When the full-screen menu appears, select Troubleshooting, then Advanced Options, then Startup Settings.  On the next window click the Restart button and wait for the next screen to appear  (just stick with us here, we know this is long) [ed. note: NO, really?].  Next you will see a menu with numbered startup options; select number 4, which is Safe Mode [ed. note: Finally, yay! Oh, but wait...-->] .  Note that if you want to connect to any online scanners you’ll need to select option 5, which is Safe Mode with Networking.
My way, or the highway
Type "safe" into Cortana. Click on the first result; on the next screen hit the Restart Now button. After restarting, click Troubleshoot, then Advanced Options, then Startup Settings; on the next screen hit the Restart now button.
*drops mic forever* (this came in many words under PCWorld's version even once I had to edit shortly after posting for leaving most of the steps out*)
I could make my version even shorter, but it'd just be nitpicking.
Bold is used in my how-to to help the eye track better, so you stay more focused. And if your steps involve a computer re-start at any point, like these ones did? You need to ask your readers to bookmark the instruction page so they can find it again.
The thing is, if you're gearing words toward the computer-learning, don't use lots of words. You need a clear, short, simple, easy-to-follow framework, preferably in list form if it takes more than 2-3 steps. I struggled with just this issue in learning to write how-tos, and still feel some of them should be even shorter/more concise than they are.
Computer users often know what to look up if they don't understand why they're doing something, so simply tell them how and let them figure out "why" in Google or by asking you or others. You can also explain "why" before you start the actual how-to, but somehow separate it from the actual instructions to help minimize confusion.
And if there are multiple ways to do something, show the simplest way possible. Make it look easy; make it seem like fun! Or they'll never want to follow your steps again. Even I got a headache trying to envision how to perform all of PCWorld's steps: knowing the most complicated way to do something is far from knowing the one way that makes you look l33t even if you have no idea what you just did.
And I'm hoping no one says, "But what about people who disable Cortana?" Can't be done, for one thing. Even if people choose to keep Cortana "hidden", there are still easier ways; for instance, the latest version of Win 10 Pro allows you to find Safe Mode by looking in the taskbar tray for All Settings; from there just go to Updates & Security-->Recovery-->Advanced Startup and hit Restart now, then click Troubleshoot-->Advanced Options-->Startup Settings and hit the Restart button. That's it - for real.
*last paragraph also left steps out; now fixed