Test Your Windows PC For Spectre And Meltdown Vulnerabilities With This Free Utility

Image: Alex Ionescu

While lists are available to show you what platforms are affected by Spectre and Meltdown, it'd be nice if you could just run a tool and have it tell you what you're protected against. For Windows users, SpecuCheck is one such option.

A few caveats. Firstly, you'll have to make sure your Windows install is up-to-date, as the utility relies on new API calls to gather the information it needs, specifically NtQuerySystemInformation. Secondly, Ionescu recommends using Microsoft's own PowerShell module for retrieving this information, but if you can't, SpecuCheck is, at the time of writing, a good alternative.

64 and 32-bit executables can be downloaded from the releases page on the utility's GitHub repo. Open up a command prompt, locate SpecuCheck-x86.exe or SpecuCheck.exe, and run the program. If you have the updates installed, you should see something like this.

Image: Alex Ionescu

The results show each vulnerability and the hardware/software mitigations that are in effect (according to the Windows kernel). Right now, it's just nice information to know, but as we continue to learn more about the extent of the issue, it'll be a handy tool to have available.

SpecuCheck [GitHub]


    " Open up a command prompt, locate SpecuCheck-x86.exe or SpecuCheck.exe, and run the program."
    fuck this makes me angry. so basically, unless you know how to do this dont bother.
    you are a shitty blog writer mate.

      I think if you're at the level where you need/want to check for such complex vulnerabilities, you should know how to type a path to a file. It's beyond hand holding.

      Instead of complaining about a simple fix issue, you just offered a better how-to in the first place?
      Who knows maybe the author would of updated their article and credited you too!

      If you downloaded it, open download folder and copy/paste the file to C: drive first, or any place you want
      click 'Start Button', click 'execute', type 'cmd' and you are in a command prompt.
      cd (change directory) to the place you put the executable SpecuCheck-x86.exe.
      cd C :\ or any place you want, use backslash to go to different folders on this drive, e.g. cd C:\users\[insert your user name]\Downloads
      type Specu, hit [tab->], the line will autocomplete to SpecuChec-x86.exe, hit [enter]
      Hope it helps

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