Hi;
I installed Windows7 recently. I was changing permissions and accidently denied authenticated users to C drive. I was logged in as admin which is the only account. Now I cant access anythig in C Drive and cant execute any thing. I tried through safe mode as well but of no use. How can I regain access or reset permissions.
Any help would be appreciated!
cheers
Yes I can but cant do anything under the security tab which requires admin rights.
I even managed to activate hidden admin account through safe mode but cant do any admin stuff using that account too.
authenticated users= no access. that might be a slight problem If the hidden super admin cant change it I hope you have a backup to restore, or you could try a repair install
Ken
actually i was trying sumthing to get rid of that pop up asking to allow an exe to run thousand times a dayand mistakenly denied to all.
Now I cant even retore as it doesnt open the restore window due to access problem. Looks like I am gonna give up and try ro repair/reinstall
cheers
Ali
Its actually your best idea. btw that annoying pop-up is called UAC and you can turn it off.
Ken
You could give this a try first:
1 Go into Safe mode with cmd prompt
2. Open cmd prompt and type:
NET USER ADMINISTRATOR /active:yes {enter}
3. Type NET STOP ProfSvc {enter} to get to login screen.
3. Ctrl +Alt+ Del > start Task Manager> New Task>Explorer.
4.EITHER :
a) Open Regedit and go to
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\System.
In the right pane , rt click and Modify EnableUA and change the value to 0.
WarningUse this only in Windows 7. Disabling UAC like this in Windows 8 will break Store apps, and cause you to no longer be able to open and run them.
OR
b) Go to Msconfig>Tools Tab>Disable UAC.
5. Then rt click C drive Properties >Security>Highlight Authenticated Users>Edit >Tick Full Control>Apply>OK. and see if you can get control of it.
Last edited by Brink; 28 Sep 2012 at 10:40. Reason: added warning
Ali, based on the evidence presented, I cannot be alone in providing a singular bit of advice - you may be well served to leave UAC enabled, at least at a minimal level.
After the successful repair or re-install is accomplished.
Thanx SIW2... I disabled UAC and now I get the following message when I click security tab of the drive : "You dont hav permisssions to view or edit this object's permission settings".
I think, the only thing that could help is by changing the permissions from registry but dont know how to do that:)
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