Re-iterating what Thom said:  Most likely you didn't select it during the install process.
Either start the installer and choose add features / components  and select "Management Tools - Complete"...

Where I work, security is fairly high on the list of priorities.  With that being said, even here things could be more secure.  Sure, I have a separate dedicated "admin"...

I'm presuming when it fails, you're trying to run it as a scheduled Agent job?  If so, you need one of two things on the server itself, either:
1.  MS...

An problem solved.
Searching yesterday I'd come across a post from someone with a sort of similar issue, which was resolved by switching from the OLEDB provider to the ADO.NET...