# Creating a guid object
$guid = [guid]::NewGuid()

# Adding a sample row
Add-AzTableRow -table $table -partitionKey "partition01" -rowKey "item1" -property @{"id"=$guid;"computerName"="COMP01";"osVersion"="Windows 10";"status"="OK"}

# Getting row based on guid value of Id column using the $guid object
Get-AzTableRow -table $table -columnName id -guidValue $guid -operator Equal

# Getting row based on guid value of Id column by casting a guid string into guid type
Get-AzTableRow -table $table -columnName id -guidValue ([guid]"30cd1759-45b3-4ead-8767-ebeef6c0d206") -operator Equal