A while ago I wrote a script that report all the previous versions of PowerShell modules that have been installed.

https://blog.ciaops.com/2025/03/28/report-installed-powershell-module-versions/

I’ve now done a script that will allow yoru to delete all these previous versions while retaining the current version. You’ll find that script here:

https://github.com/directorcia/Office365/blob/master/psmodules-del.ps1

# Example usage:
# Remove-OldPSModules                                                  # Process all modules without confirmation
# Remove-OldPSModules -SummaryOnly                                     # Only show summary info, minimize verbose output
# Remove-OldPSModules -ModuleNames “Microsoft.Graph”, “Az”            # Process specific modules
# Remove-OldPSModules -ConfirmUninstall                               # Ask before each removal
# Remove-OldPSModules -WhatIf                                         # Simulation mode, no actual changes
# Remove-OldPSModules -ModuleNames “Az” -ConfirmUninstall -WhatIf     # Combine parameters as needed

You can modify the execution part of the script at the bottom to suit your needs.

Here’s a handy function you can use in your PowerShell scripts when you need to verify that information contains a valid emails address.

function ValidateEmailAddress {
param (
[string]$EmailAddress
)

    $emailRegex = ‘^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$’
$isValid = $EmailAddress -match $emailRegex

    return $isValid
}

Just call the function and specify the text you want to verify as a parameter like:

ValidateEmailAddress(“director@ciaops.com”)

and you’ll get either True or False.