Batch file to clear all credentials from Windows Credential Manager

clear-credential-manager.cmd

@echo off
cmdkey.exe /list > "%TEMP%\List.txt"
findstr.exe Target "%TEMP%\List.txt" > "%TEMP%\tokensonly.txt"
FOR /F "tokens=1,2 delims= " %%G IN (%TEMP%\tokensonly.txt) DO cmdkey.exe /delete:%%H
del "%TEMP%\List.txt" /s /f /q
del "%TEMP%\tokensonly.txt" /s /f /q
echo All done
pause

Similar to @Atha1Kishan's answer, here's a small script to delete all credentials matching a search string:

# List all credentials in the current user's Credential Manager
$all_creds = cmdkey /list

# Delete all credentials matching a specific pattern, like 'Microsoft:SSMS'
$pattern = "Microsoft:SSMS"
foreach ($cred in $all_creds) {
    if ($cred -match "target=(.+)") {
        $cred_name = $matches[1]
        # Now $cred_name contains everything after "target="
        if ($cred_name -like "*$pattern*") {
            cmdkey /delete:$cred_name
            Write-Output $cred_name
        }
    }
}