As our business continues to focus on providing white labeled Tier 3 IT support services, RMM as a service, and co-managed IT services this blog will be highlighting tips for using Powershell to fix Credential Manager empty after reboot. There has been several users at a bunch of clients recently that have lost access to a network share due to saved passwords and we found Credential Manager empty after reboot. It was easy enough to re-add their password to Credential Manager, but it was not sticking around. This sounds like a job for automation, so we created a script to clear the errant Credential Manger files and create a new entry for the user to connect to file shares.

Variables

$user = username to add to Credential Manager of network share connection

$pass = password to add to same

Script Snippet

### Remove file folder associated with Credential Manager
Remove-Item -Path %localappdata%\Microsoft\Vault -Recurse

### Install Credential Manager Powershell Module
Import-Module -Name CredentialManager -Force

### Convert password to Secure String and create credential
$password = ConvertTo-SecureString -string $pass -AsPlainText -Force
$Credential = new-object -typename System.Management.Automation.PSCredential -argumentlist $user, $password

# Save the credential object directly without unwrapping it:
New-StoredCredential -Credentials $Credential -Target 'Share Credentials' -Persist Enterprise -Comment "Share Credentials for $($Credential.UserName)" > $null

This script will need to be run in the context of the user who needs the credential created. Please use caution with this script as it will empty Credential Manager completely for the user context run with. Also it is advised to run a full CHKDSK /R on the root (C:\ usually) directory to make sure that nothing else is corrupt on the drive.

If your company is a MSP or wants to become one and automation just seems out of reach, then contact us to run your RMM for you.