The default behaviour of the Control Panel view is to load the view selected in your last Control Panel session. If you need to change this default behaviour and force Control Panel to display all items upon loading then you can either tweak the registry or use Group Policy to set a default view irrespective of your last session modifications.
User Account Control (UAC) is a Windows 7 in-built tool that protects your system and alerts you when you are executing some task that requires administrator privileges, however, if you would like to know how to disable UAC from the registry, here is the info:
In high-secure environments the Windows system pagefile may pose a risk to confidentiality and integrity of sensitive data. Sensitive data may still reside in the system pagefile which can be exfiltrated by attackers with the help of specialized tools. In such high-security scenarios, one would need to take the proper measures to safeguard systems pagefiles.
Say, you don’t want other users to fiddle around with your system settings and would like to completely disable access to Control Panel for all users then you can achieve this by simply adding a new registry entry.
The default IP address of Windows 7 (and Windows Server 2008 R2) virtual Wi-Fi Access Point (AP) feature called Wireless Hosted Network is 192.168.137.1. Although, this address is highly unlikely to conflict with other addresses that you may have configured on your network still, you may wish to change it to another value. In order to be able to change this default IP address you need to modify a Registry setting as follows:
Windows 7, unlike older versions of Windows include a registry entry which allows users to replace the logon user interface default background image. In previous versions users had to hack files in order to achieve the same results. When Windows 7 starts, it checks whether the logon UI (User Interface) background option is enabled in the registry and loads the default image as the background picture of the CTRL+ALT+DEL logon screen. To replace the logon UI background image follow the steps below:
If somehow the default program associated with a file gets corrupted or changed to another program then any files that belong to that program would not run! Apart from problems with .exe file extensions you can use the registry editor to undo any other incorrect file associations. In cases of .exe file association problems you can read a previous article titled Filename extensions – Can’t open .exe files? since, using the procedure below would not allow you to open the registry editor to resolve .exe file association issues!