On our environment we uninstalled our SCCM server to reinstall it into other drive (D:\) instead of (C:\) 
with backing up and restoring the database 
now all of clients are inactive 
can any one help me on this case thanks 

Hi,

I believe that scenario is not supported.

https://social.technet.microsoft.com/Forums/en-US/1af60912-321b-4af1-b882-c2bcce0f3817/moving-sccm-2012-from-my-os-drive-to-a-separate-drive?forum=configmanagergeneral

If you want to move from the OS drive then you would need to migrate or export / import the data from the old server to the new server or start again.

You can now migrate from 2012 to 2012.

• Edited by Richard.Knight Saturday, August 29, 2015 3:23 PM
• Proposed as answer by Paul Winstanley [SCCMentor] Saturday, August 29, 2015 3:36 PM
• Marked as answer by Jason SandysMVP, Moderator 18 hours 6 minutes ago

Hi,

I believe that scenario is not supported.

https://social.technet.microsoft.com/Forums/en-US/1af60912-321b-4af1-b882-c2bcce0f3817/moving-sccm-2012-from-my-os-drive-to-a-separate-drive?forum=configmanagergeneral

If you want to move from the OS drive then you would need to migrate or export / import the data from the old server to the new server or start again.

You can now migrate from 2012 to 2012.

• Edited by Richard.Knight Saturday, August 29, 2015 3:23 PM
• Proposed as answer by Paul Winstanley [SCCMentor] Saturday, August 29, 2015 3:36 PM
• Marked as answer by Jason SandysMVP, Moderator Sunday, August 30, 2015 1:41 PM
• Unmarked as answer by Ahmed Ibrahiem Elkhouly Tuesday, September 01, 2015 11:10 AM

You can't just uninstall the ConfigMgr site and reinstall it and expect clients to start talking to the new site. That would be a huge security problem.

The best path here is to reinstall the client agents using the RESETKEYINFORMATION=TRUE property and the SMSSITECODE property set to the new site code (assuming its different).

not sure if this is the answer I was expecting

I believe that there a supported scenario to do that

By the way thanks a lot for your answer and I wil try to fix it

thanks  

I solved this issue by doing the next steps :

after investagtion and deeply reading all reports I found that MP is not accessible or knowable for all clients because the change has been done so I did :

1- Reset the Site (from Control Panel > Uninstall / Change > Reset The Site) by this way I removed all bins from the current site

2- Installing the CU5 so it added all bins and folders back and made all client able to access MP and DPs

Thanks   

• Marked as answer by Ahmed Ibrahiem Elkhouly 22 hours 21 minutes ago

1- Reset the Site (from Control Panel > Uninstall / Change > Reset The Site) by this way I removed all bins from the current site

 

That's not true. A site reset does not remove "bins" from the site. It just reinstalls each and every component while maintaining all configs.