Get-Credential

Get a security credential object based on a user name and password.

Syntax
      Get-Credential [-credential] PSCredential [CommonParameters]

key
   -credential 
       A user name e.g."User01" or "Domain01\User01"

   CommonParameters:
       -Verbose, -Debug, -ErrorAction, -ErrorVariable, -WarningAction, -WarningVariable,
       -OutBuffer -OutVariable.

When you enter the command, you will be prompted for a password.
If you omit PSCredential, you will be prompted for a user name and a password.

Examples

Get a credential and save into a variable:

PS C:\>$ss64Cred = Get-Credential

Use the credential object (already stored in a variable) to run a Get-WmiObject command:

PS C:\>Get-WmiObject Win32_DiskDrive -ComputerName Server01 -Credential $ss64Cred

Including a Get-Credential command in a Get-WmiObject command:

PS C:\>Get-WmiObject Win32_DiskDrive -ComputerName Server01 -Credential (get-credential Domain01\User64)

#Please allow me to introduce myself I'm a man of wealth and taste# ~ The Rolling Stones

Related:

Get-AuthenticodeSignature - Get the signature object associated with a file