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CVE-2026-26143 was published, on April 14, 2026, impacting modern (Core-based) versions of PowerShell—specifically versions 7.4 and 7.5 prior to recent patches. Before diving into the details, it’s important to understand that this vulnerability is not something that can be exploited under normal, secure usage. This issue specifically requires the use of the -SkipLimitCheck parameter on the Import-PowerShellDataFile cmdlet. That parameter...

On December 9, 2025, Microsoft shipped a security update that changes how Invoke-WebRequest behaves in Windows PowerShell 5.1. This change is important for anyone who uses PowerShell for automation, monitoring, configuration management, or CI/CD pipelines. The short version:Invoke-WebRequest no longer runs automatically in all cases. It now displays a security confirmation prompt before processing web pages unless you specify safe...

In case you are not away the Microsoft Monitoring Agent (MMA) will be retired on 31 August 2024. Prior to this date you will need to migrate all your agent-based hybrid workers to the extension-based worker. Microsoft has provided plenty of guidance on migrating the existing agent-based hybrid workers to extension-based hybrid workers. However, it may be difficult to keep...

2023 was quite the year for me and PowerShell, so I thought I would put together a brief summary of the year as I saw it. Plus provide you with some fun and interesting statics from the PowerShell Weekly newsletter. This year was also a huge year for me. My book Practical Automation with PowerShell was released in April. This...

The following function can be used to compare two pictures based on size and a pixel-by-pixel comparison. Function Compare-Images { param( $ReferenceFile, $DifferenceFile ) $ReferenceImage = [System.Drawing.Bitmap]::FromFile($ReferenceFile) $DifferenceImage = [System.Drawing.Bitmap]::FromFile($DifferenceFile) if ($ReferenceImage.Size -ne $DifferenceImage.Size) { Write-Host "Images are of different sizes" $false } else { # Set the difference to 0 [float]$Difference = 0; # Parse through each pixel for...

I am pleased to announce that PowerShell Weekly has been redesigned and moved to its own sub-site psweekly.dowst.dev. All past posts and links are available there as well. What’s New New look and feel Thumbnails for every link Improved searching of the 2,000+ links Search by keyword, date, author, category Custom RSS Feed specifically the links

2021 was quite the year for PowerShell. We saw a lot of first and improvements in the platform. Not just from Microsoft but the community as a whole. I also personally hit a few milestones. First and foremost, happy 15th birthday to PowerShell. This year was also a huge year for me. My book Practical Automation with PowerShell was released...

After months and months of work, I’m proud to announce my new book is now available for purchase. Practical Automation with PowerShell reveals how you can use PowerShell to build automation solutions for a huge number of common admin and DevOps tasks. It takes you beyond scripting basics and shows you how to handle the unforeseen complexities that can keep...