Windows 7-64 User control pop-up at boot up.

There is some interaction going on between a program that wants to be seated as a service (for instance, some update program). You have Garmin software installed by any chance?
You have to find out which service is responsible, and see if reinstalling with the Run As Administrator option helps or not. If you don't care about the updates, you can also disable the service in question.

This should help you out. http://www.shouldiblockit.com/sc.exe-101.aspx

Actually sc.exe is part of the operating system. It's invoked by another update service or program. You have to track that one down, not focus on sc.exe

Have you installed or uninstalled a program recently?  Something is requesting elevated privileges on your PC.  If you didn't make any changes recently, best to find out what this is before allowing it.

Have you considered a system restore to a point prior to seeing this pop-up?

Since you have Garmin software installed, you can disable the updater (probably causing this message). Start > Run > services.msc
Find the "garmin updater" service, double click, set Startup Type to Disabled.
Of course, now you have to try to remember to update it yourself once in a while (or if you don't have a subscription anymore, do nothing)

I've disabled the Garmin Core update Service.  I'll see if that solves the issue.

Thank you!

I've now had the Garmin updater program disabled for several days.   The NT services request  is still appearing.  This has been going on for months now so it is not something new.  I just am getting tired of it and wondered if it is alluding to an additional problem that should be addressed.  

Thanks in advance.

I haven't had time to put  Kimputer's solution to use.  I will do so as soon as possible.  I suspect that will identify the culprit.  I'll report back as soon as I get my part done and have the results.

Thanks to you all for the assistance,

I found this post related to my model Dell XPS-8300 desk top computer.  I've used Dells System Detect download to download the original and present features  installed on the computer.

I have now uninstalled the routine and will see if the error goes away.

http://www.bleepingcomputer.com/forums/t/511889/dsd-not-responding-question/

rwhII

Here's an update on my original issue.

I've disabled all non-Microsoft services.  I noted that one service, "Norton Identity Safe", will not allow me to disable it.  I unchecked it but when I okay the change(s), the service is rechecked.

In any event, upon reboot, the Win NT error still reappears after boot up.  

Could yo suggest any additional solutions??

Thanks in advance,

RWHII

If it's not a service, it's a startup program. Do the same with msconfig, except uncheck boxes in the Startup tab.

Kimputer,

Thank you for the additional input.  You were spot on with your first suggestion.  It was Garmin Software, The "Garmin Express Tray"  file.

The latest version, v3.2.18.0 seems to have corrected the problem.

Thanks for your assistance.

rwhii