Sure.
Point 1:
If you go to the Windows menu and search for Services, it should bring up the Services Desktop app. Scroll down to the Microsoft Dynamics 365 Unified Operations: Batch Management Service, right click and choose Start. It may fail to start, so if it does, go to the Windows Menu again and open Event Viewer.
In Event Viewer, click Custom Views > Administrative Events on the left. It should open up all of the events on the right. Find the one that corresponds to the Batch service not starting and it should tell you exactly why.
Point 2:
As I said, it's unlikely that this is going to cause you a problem unless your account cannot create the folder in the first place. The error is because the Powershell script is trying to delete the "Working" folder once it has finished. Go to C:\DynamicsTools\CleanVHD and try to create a folder called Working. If it creates it without issue, then you have the correct permissions to create a folder there.
Were there definitely no other errors in the script execution?
Also, looking at your original error, is the SQL Server service definitely running?