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I needed to change the access rights to the system log on two computers (both running Windows 7), as described in this question. I did it successfully on one of the computers.
On the second one, I started regedit.exe as administrator from the context menu. It did not ask for a password on start, although I was logged in as a non-administrator. I added the user and groups I needed to the access list, then I clicked "Apply". I got an "access denied" error message with just an "OK" button, and there was no UAC prompt where I could have given an admin password (or possibly a domain admin password - one of the accounts which needs access came from the active directory) to resolve the issue.
When I log in with my administrator account, the same thing happens - regedit starts, but it will not let me add user permissions, not even for local accounts.
What could be causing this, and how do I add the users?
Rumi P.
Posted 2013-05-07T07:38:12.253
Reputation: 411
What does the current Access control list look like? Who has which rights? Are you sure you are logged in as a local admin!? – Werner Henze – 2013-05-07T07:49:31.383
1Are you logged in as
Administratoror just as *an* administrator? If the latter, try doing “Run as Administrator”. – Scott – 2013-05-07T21:24:14.977It is the second, and this is exactly what I did - by "started regedit as administrator from the context menu" I mean that I chose "run as administrator" from the context menu, and no matter which account I was using - with or without local administration rights - I never got an UAC prompt. – Rumi P. – 2013-05-13T10:16:13.560
By the way, we were able to edit the registry after somebody logged in with an account with domain administration rights. I will leave the question open, because we never found out what prevents the UAC from appearing. – Rumi P. – 2013-05-13T10:17:28.540