The following procedure works for me but not the shortest one:

1. Make sure that account you are logging in as has the appropriate credentials for the task you are trying to accomplish, in my case, I needed to be part of the domain builtin\Administrators group to manage my DC. I made sure to add my account to this group first.
2. Next Right-click black Command Prompt icon on start menu.
3. Select Run as administrator
4. Type in the account credentials you created above. Unfortunately, you will need to type them in again.
5. Next use the following command: runas /user:domain\username "explorer /separate"
6. It should prompt for your password in the command line, enter your password. Unfortunately, it will not automatically launch windows explorer, you will still need to type the command.
7. Now type either one of the following commands while still in the command line:
8. "explorer ." or start .

This seemed to work well for me, let me know otherwise and I hope that it helps someone.

I pulled the information from the following MS forum: http://answers.microsoft.com/en-us/windows/forum/windows_vista-security/how-to-start-windows-explorer-as-administrator/a3cfdd52-695d-46b0-a617-1c9128addf01

Kill explorer. Start elevated explorer.

Back in 2008 pre-R2, I used to do this by running explorer from an elevated command prompt. This doesn't seem to work anymore with R2.

The only way I've found to do it in R2 so far is by killing the existing non-elevated explorer instance first. Once the non-elevated explorer is gone, the elevated version will launch successfully from wherever you launch it.

I'm curious to see the other answers this generates, because killing explorer is messy. The only other option I know of is to login with the actual administrator account since UAC doesn't apply to it.

Try to set "Launch folder windows in separate process" option in folder options, to see if that does the trick.

You can't, if you're running another copy of explorer.exe (like, say, the desktop shell). MS removed the ability to do this altogether from Vista, and it hasn't made it back in yet. Launch folder windows in a separate process doesn't do the trick anymore like it did in XP/2003.

Your options:

• Exit all instances of the shell. If you hold down Ctrl+Shift and Right-Click on an empty area of the Start Menu, the context menu will have an Exit Explorer entry. That's significantly less messy than killing explorer.exe via some other method (e.g. Task Manager, psKill, etc.). One can do the same thing in XP by going to the shutdown dialog and holding down Ctrl+Alt+Shift while canceling the dialog.
• Get a 3rd party file manager. The inability to horizontally scroll the tree in the new Explorer makes this particularly attractive if you have any significant folder hierarchies.
• Have "administrative" user accounts that log in without UAC by default. I'm not sure if this is possible, but Microsoft is doing it with the Administrator account. Even if it worked, this involves logging out and back in. Not exactly great.
• Disable UAC. :-)

Running elevated Windows Explorer windows is disabled since at least Windows 7/Server 2008. It can be enabled by modifying the key:

HKCR\AppID\{CDCBCFCA-3CDC-436f-A4E2-0E02075250C2}

Rename the value* RunAs to something else, and you should immediately be able to use Run As Administrator to get elevated Windows Explorer windows.

You will probably need to take ownership of the key, and give yourself full permission to it. Don't forget to run elevated RegEdit.

(* recall: values are "files" on the right, and you are changing the name of the value not changing the value.)