How to turn off Security Center alerts

1. Click Start and then click Control Panel.
2. Double-click Security Center.
3. In the Security Center, under Resources, click Change the way Security Center alerts me.
4. In the Alert Settings dialog box, clear the Firewall, Automatic Updates, or Virus Protection check boxes, and then click OK.

IE 7 opening to Run Once page

You've got error while IE 7 opening to Run Once page  http://runonce.msn.com/runonce2.aspx

Resolution:
Edit this following registry:
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main\RunOnceHasShown
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main\RunOnceComplete
changed their value to "1".
or created them both if you couldn't find it (Right click where they should be, new DWORD) and changed their value to "1".

The Open Procedure for service "ASP.NET is Failed

Error messages:

The Open Procedure for service "ASP.NET_1.0.3705.6060" in DLL "C:\WINNT\Microsoft.NET\Framework\v1.0.3705\aspnet_isapi.dll" failed. Performance data for this service will not be available. The Status code returned is the first DWORD in the attached data.

Resolution:
Try to rebuild your Performance Counter Library values.

http://support.microsoft.com/kb/300956

Direct3D functionality not available

Problem:
You’ve got note below when run Dxdiag

“Direct3D functionality not available. You should verify that the driver is a final version from the hardware manufacturer”

Solution:
<![if !supportLists]>1.<![endif]>goto the settings tab of display properties
<![if !supportLists]>2.<![endif]>click advanced
<![if !supportLists]>3.<![endif]>click on the troubleshoot tab and turn hardware acceleration to “Full”
<![if !supportLists]>4.<![endif]>Recheck with Dxdiag

How to re-create the Show Desktop icon

Manual steps to re-create the Show Desktop icon on the Quick Launch toolbar

The Show Desktop icon is not an ordinary program shortcut. If the icon is deleted, the procedure for re-creating the icon is not obvious. To manually re-create the Show Desktop icon, follow these steps:

1. Click Start , click Run, type notepad, and then click OK.
2. In Notepad, type the following text on individual lines:

[Shell]
Command=2
IconFile=explorer.exe,3
[Taskbar]
Command=ToggleDesktop

3. On the File menu, click Save As, and then save the file to your desktop as Show Desktop.scf.

Note Notepad might automatically append a .txt extension to the file name. Remove this extension if present. The file name should be Show Desktop.scf.

Ref: http://support.microsoft.com/kb/190355