Reset Windows Security settings to default values in Windows 7 | 8/ Can't Open My Computer/ Control Panel

SOLUTION TO ERRORS : 

ACCESS DENIED
1. Can't Open My Computer/ Control Panel or any drive.
2. Can't open or delete anything.

Solution :

1.Simple Open cmd using Run as an admin. 
2.Paste this code  secedit /configure /cfg %windir%\inf\defltbase.inf /db defltbase.sdb /verbose.
3.Press Enter.
4.Restart.



There may come a time when you may want to or need to reset your Windows Security settings to default values.

Open an elevated command prompt and type the following command:

secedit /configure /cfg %windir%\inf\defltbase.inf /db defltbase.sdb /verbose

Hit Enter 

After you run this, the standard user accounts may no longer appear on the logon screen when you re-start your computer or try to switch users.

This occurs because standard user accounts are removed from the Users group when you reset Windows security settings.     

To add the affected users accounts back to the Users group, follow these steps.

Open an elevated command prompt. In the Command Prompt window, type net users and hit Enter. A list of user accounts will be displayed.

For each account name listed in the Command Prompt that is missing from the log on or switch user screen, type the following command and hit Enter.

net localgroup users accountname /add

In Windows 8 | 7 | Vista, the Defltbase.inf file is a Security configuration template for the default security. You can view the settings for this file in the following location:

%windir%\inf\defltbase.inf

You will see all changes made, in a newly created log file situated at the following location:

C:\Windows\security\logs\scesrv.log