8,330 questions
Try something like this:
$Thumbprint = '838A1C18C19XXBOGUSXX47CC21071A0F220617466'
$cn = Get-ADComputer -Filter * | Select-Object -ExpandProperty Name
Invoke-Command -ComputerName $cn -ScriptBlock{
Get-ChildItem -path Cert:\* -Recurse |
Where-Object $_.Thumbprint -eq $Using.$ThumbPrint |
Select-Object @{n='Computer';e={$ENV:ComputerName}}, Thumbprint, Friendlyname
}