Randomize Password (Using Task Tab)

Under construction...Dividing into shorter tasks...

Randomize Administrator Password Task

From the Tasks tab, select the Local Security folder / Randomize Administrator Password. 

Right-click and select Run to run this task on multiple machines leaving the Relative IDs set at 500 for the "built-in" administrator.

Or

Use Quick Run to run the task on one machine by selecting Quick Run, and finding the name of the machine. Select the machine name and click Run.

Upon this task's completion, go to the Policies tab.

Select Resources / Local Users. Find the "built-in" Admin account on a remote machine. Right-click and select Show Managed Password. This action displays the randomized password of that machine.

Copy the randomized password to the clipboard (you can use that password to login to a remote machine)