Get Quick Launch Toolbar Back

1. Right-click the taskbar, choose Toolbars / New Toolbar
2. In the folder selection dialog, enter the following string and hit OK:
%userprofile%\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch
3. Turn off the “lock the taskbar” setting, and right-click on the divider. Make sure that “Show text” and “Show title” are disabled and the view is set to “small icons”.
4. Use the dividers to rearrange the toolbar ordering to choice, and then lock the taskbar again

Starting explorer from “My Computer”

To do this, navigate to Windows Explorer in the Start Menu (it’s in the Accessories folder). Then edit the properties and change the target to read:
%SystemRoot%\explorer.exe ::{20D04FE0-3AEA-1069-A2D8-08002B30309D}

Old behavior for Windows Live Messenger

Navigate to C:\Program Files\Windows Live\Messenger\ and set the properties of msnmsgr.exe to Vista compatibility mode. This will place the Messenger icon back in your system tray and remove the 2 annoying tabs on the taskbar.