posts-powershell

If you have Windows Defender installed on your machine, you can use this PowerShell command to run a quick scan on a drive of your choice: PS>...

By default, the Telnet client is disabled on Windows systems. You can easily enable it with a one liner in PowerShell, though. Just launch a...

By default, PowerShell remoting uses Kerberos authentication and works only in domain environments, and only when you specify computer names, not IP...

Beginning in PowerShell 4.0, you can use validators for variable assignments. This gives you a quick and easy way of validating user input, too. The...

To restore custom settings in PowerShell ISE to factory defaults, try running these lines: $PSise.Options.RestoreDefaults()...

Have you ever tried to enable PowerShell remoting with Enable-PSRemoting, and just got an error complaining about not being able to check the...

Sometimes, Windows Explorer does not show correct icons. When you update to PowerShell 5.0, for example, both PowerShell and PowerShell ISE got new...

If you need to return multiple items in a nicely formatted text report, here is a simple trick: get yourself an ordered hash table (supported in...

Test-Connection can ping multiple computers only sequentially, and it does not let you specify a timeout. So when you need to check a large number...

The Test-Connection cmdlet implements a simple ping to check whether a system responds to an ICMP request. Unfortunately, you cannot specify a...

When you run a native console command via PowerShell remoting, special characters like German Umlauts will be damaged because remoting uses a rather...

PowerShell supports not just the file system, so you can set the current path to a different provider (Set-Location). Here is a trick that always...

Beginning in PowerShell 3.0, you can create pre-initialized objects by using a hash table. Simply add the properties you want to preinitialize, then...

PowerShell 3.0 added an alternative to Get-WmiObject: Get-CimInstance seems to work very similar and can retrieve information from the internal WMI...

If your script needs resources such as icons or pictures, you do not have to ship these resources separately. They can be Base64-encoded and added...

Here is a simple way to encode text as a Base64 string: #requires -Version 1 $text = 'Hello World!'...

Beginning in Windows 8 and Server 2012, there is a cmdlet that helps you enable the client firewall for various profiles: Set-NetFirewallProfile...

In AD, there is a strange-looking filter: 1.2.840.113556.1.4.1941. It is called "matching rule in chain" and can be used to quickly find...

Before the advent of PowerShell 5.0, to clear the recycler, you would have to manually delete the content of the hidden $Recycle.Bin folder in the...

Use this code snippet to force a user to change his/her password: #requires -Version 1 -Modules ActiveDirectory Set-ADUser -Identity username...

Here is a fun function to provide you with a good first level support response in case everyone is off for Christmas: #requires -Version 3 function...

If your boss needs a list of operating systems used by computers in your AD, this may be a good start: #requires -Version 1 -Modules ActiveDirectory...

Here is a quick script that scans all OUs in your Active Directory for computer accounts, then groups them per OU by operating system: #requires...

When you open a CSV file in Excel, you get a very fast data import, but the result is "black and white"; CSV data has no way of colorizing...

PowerShell ISE supports code snippets, and you can easily create your own: #requires -Version 3 $code = @' | Where-Object { $_ } '@...

ForEach-Object is a powerful pipeline cmdlet, but foremost it is an anonymous function. ForEach-Object is great to build "prototype...

There are a number of routine pipeline cmdlets like Where-Object and Select-Object, yet the only essential cmdlet is ForEach-Object. All the other...

It's time for Christmas again, so here is a PowerShell classic: # inspired by: #...

When you declare a parameter mandatory and the user does not specify it, PowerShell prompts the user for it. Another way of creating mandatory...