Windows 7 Activation Error

I have asked NoelDP he knows more about this stuff.

Interesting -
The SPLDR service is apparently properly installed, but doesn't appear to be running
(I see VK pinched my script:))
Let's check that....

Open an Elevated Command Prompt, and run the following commands....

NET START SPLDR
SC QUERYEX SPLDR
SC SDSHOW SPLDR


Here are some instructions to make life easier :)
1) To open an Elevated Command Prompt Window (the ECP window), click on Start, All Programs, Accessories – then right-click on Command Prompt, and select Run as Administrator. Accept the UAC prompt.
2) To run the commands easier, highlight the block of commands, and right-click on the highlight – select Copy. In the CP Window, click on the black/white icon at top left – select Paste. The commands will run but may not complete the last command, so hit the Enter Key once.
3) To copy the results... click on the Black/White icon in the top left, and select Edit... 'Select All', and hit the Enter key - then use Ctrl+V or r-click+Paste to paste it into your response.

NoelDP

Shouldn't the configflags be 400 . Checked against my PC and that had 400 instead of 401

Aarrgghh!!
You're right (my excuse is that it was Pool Match night! :))


Open Regedit and navigate to the HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_SPLDR Key

Export it to a reg file for safety!
Right-click on the key name, and Select Permissions,
Click on Advanced, then the Owner tab
Make sure that Administrators is the owner, and put a tick in the 'Replace owner...' box at the bottom
Click OK once
add Administrators to the 'Groups or Usernames' list, and give them Full permissions
CLICK OK
Now move to the 0000 subkey
Double-click on the ConfigFlags entry
Change the data value to 400 (make sure that the radio-button is in 'Hexadecimal') and click OK
Exit Regedit, and reboot.
Post a new MGADiag report

That probably means that you haven't taken Ownership as 'Adminstrators'

Try it again - this time, once you've got Adminstrators (Note the 's'!!) as the Owner, make sure that you tick the box to Replace permissions on child objects.

OK out to regedit, then go back in and then try changing the permissions again.

Please post a snip of the Advanced permissions for that key.