Adobe Reader Starts at Boot Time with the Same File

[StargateCOlorado]

Every time I boot/restart my laptop (running Win 10 Pro, latest version), Adobe Reader starts with the same file.  Here's what I have tried:

• I went into the regsitry and removed every reference to that file.
• I removed every copy of the file from the file system.  The only copy remaining is stored in my Outlook .PST file, so it's not visible to the file system.
• I uninstalled/reinstalled the Reader.
• Thinking that Creative Cloud might be triggering it at boot time, I stopped CC from loading.
• I simply tried simply closing the file while in the Reader.
• I went into the Adobe Cloud and removed every file.

I am at a loss as to what to try next.  Does anybody have a suggestion as to what I might try next?

--Ernie

[StargateCOlorado · Accepted solution]

Well, problem solved.  Apparently, Microsoft had inserted the file in my Startup directory at some point for some reason (!).  When I removed it, the problem went away.  It's interesting that a file search did not catch that instance of the file.  It also explains why scrubbing the Registry didn't help..

Case closed.

--Ernie