Before you can change an ACL, you must get the current one. There are two ways to do this with PowerShell. Learn how to get the current ACL and modify it.
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PowerShell: Everything you need to know

What is PowerShell? Microsoft PowerShell is a powerful administrative tool that can help you automate tasks for your computer ...
Recently, I have been hard at work, creating some really complex PowerShell scripts related to a few projects that I have been working on. One of the big lessons that I have learned through all of ...
In a nutshell: Microsoft continues to impose strict and, to many, unfair requirements for Windows installation, prompting users to push back by finding creative ways ...