Windows 7 Pro - right click Computer

What happens if you try to invoke it in two other ways:

(1) Control Panel>Administrative Tools>Computer Management

(2) Start>Run>compmgmt.msc

Regards, Joe

Btw, if the two ideas in my previous post don't work, try running compmgmt.msc in an elevated command prompt. If you don't know how to do that, here's one way:

Start>All Programs>Accessories
Right-click Command Prompt and select Run as administrator (this is known as an elevated command prompt)
Run compmgmt.msc in the command prompt window

Regards, Joe

Tried all of the above, nothing happens.   Thank you for the reply.

Open an elevated command prompt (as I explained how to do above) and enter this command:

sfc /scannow

This is called the the System File Checker tool. You may learn more about it here:
http://support.microsoft.com/kb/929833

If the reason that you're not getting Computer Management is because of missing or corrupted system files, this should fix it. Regards, Joe

dgaudioso --
And if that does not help, run a Repair Install.
http://www.sevenforums.com/tutorials/3413-repair-install.html

It will not affect personal data or installed programs, but a backup first is always a good idea.

Try checking Task Manager for any stuck mmc.exe processes. If you find any, forcefully kill them then try the Manage command again (or click Start > Run > type compmgmt.msc > OK)

it worked after running multiple gpupdates.  thank you

That's great news! Thanks for letting us know. Regards, Joe

Thank YOU for your replies.  Dom

All solved.  Thank you

All solved.  Ok to close this thank you

I'm very glad to hear that it's all solved. That's great news!

Here at EE, the askers of questions are the ones who close them. So please close this question yourself. You may read how to do that here:
http://support.experts-exchange.com/customer/portal/articles/608621-how-do-i-accept-a-comment-as-my-solution-

If you want to accept multiple comments as the solution, this article explains how:
http://support.experts-exchange.com/customer/portal/articles/608596

Also, here's an article explaining how to grade the comments with the solution:
http://support.experts-exchange.com/customer/portal/articles/481419

Regards, Joe

Hi Joe,  run the compmgmt.msc in an elevated command prompt.  this solved the issue.  Thank you

Thank you

You're welcome. And thanks to you for closing the question properly.