Content Comparison

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1. Sign in to the computer where the certificate was originally requested then start an administrative PowerShell session

   Info
   Complete any remaining instructions in this PowerShell session unless directed otherwise

   
   

2. Run the follow commands to define the certificate to be imported: 

   Code Block
   $path_cer = Read-Host -Prompt "Provide the path to the certificate file" $name_cer = Read-Host -Prompt "Provide the name of the certificate file"

   
   

3. Run the follow commands toverify the certificate to be imported: 

   Code Block
   $file_cer = Get-ChildItem -Path $path_cer | Where-Object { $_.Name -Match $name_cer } | Sort-Object -Property LastWriteTime | Select-Object -Last 1 $test_cer = New-Object System.Security.Cryptography.X509Certificates.X509Certificate2($file_cer.FullName) $test_cer | Select-Object Thumbprint, HasPrivateKey, NotBefore, NotAfter, Subject, Issuer

   
   

4. Run the following commands to import the certificate: 

   Code Block
   $cert_folder = 'Cert:\LocalMachine\My' $cert_object = Import-Certificate -FilePath $file_cer.FullName -CertStoreLocation $cert_folder

   
   

Update the certificate  

1. Run the following commands to replace the certificate: 

   Info
   The following commands will alert applications that an old certificate has been replaced by a new one. Only applications that subscribe to certificate notifications will be affected by these commands

   
   

   Code Block

   $cert_match = Get-ChildItem -Path $cert_folder | Where-Object {$_.Subject -eq $cert_object.Subject -and $_.Issuer -eq $cert_object.Issuer } | Sort-Object -Property NotBefore -Descending If ($cert_match.Count -eq 2) { Try { Switch-Certificate -OldCert $cert_match[1] -NewCert $cert_match[0]; Remove-Item $cert_match[1] } Catch { Write-Host "Error replacing or removing certificate" } } If ($cert_match.Count -gt 2) { Write-Host "Too many matching certificate; reduce matching certificate count to 2"; $cert_match | Select-Object Thumbprint, HasPrivateKey, NotBefore, NotAfter, Subject, Issuer } If ($cert_match.Count -lt 2) { Write-Host "Only one matching certificate; review certificates and service config"; $cert_match | Select-Object Thumbprint, HasPrivateKey, NotBefore, NotAfter, Subject, Issuer }

   
   

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