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NotPetya ransomware cyber-vaccine

Cyber­se­curity matters. As I type, the world is in the grip of another major ransomware attack. This one has been dubbed Not­Petya — because it’s not the one called Petya, but it is similar. As usual, it targets Windows machines. A potential vaccine has been found in the past hour (3:19 pm PST, about 11:19 pm BST). So, this is just a very quick post to help pub­licise that ASAP.

The vaccine, courtesy of the excellent security site Bleep­ing­Com­puter, is to create a read-only file in your C:\Windows dir­ectory. That’s easier said than done, as Windows (quite rightly) pro­tects that folder. So, the fol­lowing batch file should do it for you:


…and if not, this post in Bleep­ing­Com­puter explains how to do it manually. Huge thanks also to Word­Fence for high­lighting this in their excellent post here.… Read the rest

Windows 10 Slow? Try These Two Quick Fixes

Do you Windows 10 Quick Fixfind Windows 10 slow at times? That it goes from speedy to sluggish for no obvious reason? Well, before you start wor­rying about malware (which used to be the most common culprit), try these quick fixes.

  1. Open the Command Prompt in Admin mode. You can right-click on the Start menu and choose “Command Prompt (Admin)” — or try one of these other ways to open the command prompt.
  2. If a “User Account Control” warning appears, click “Yes” — you do want to let this app to make changes to your device. If nothing seems to happen, check your taskbar for a new icon — this warning some­times hides behind other windows.
  3. Once you see a black box with the title “Admin­is­trator: Command Prompt”, click into it and type the two fol­lowing com­mands, one after another:
        net stop "Windows Search"
        net stop superfetch

You should see an improvement within seconds of these two ser­vices stopping.… Read the rest