Remove user name from Start Menu

Remove user name from Start MenuSTART > RUN > GPEDIT.MSC > USER CONFIGURATION > ADMINISTRATIVE TEMPLATES > START MENU AND TASKBAR > FIND REMOVE USER NAME FROM START MENU > RIGHT CLICK PROPERTIES > CHECK ENABLED > OK

Folder Menu on Taskbar

Normally, folders like My documents or some others have to be accessed from the start menu or desktop, and they open a window. Although you can set some folders to scroll from the start menu, it is sometimes easier to make a "folder menu" that can simply be expanded from the taskbar.
1. Right-click the taskbar, and uncheck Lock the Taskbar.
2. Right-click the taskbar again, and go to Toolbars > New Toolbar...
3. A dialog will come up. Click the folder you want as a menu.
4. If the folder suddenly consumes the taskbar, move the handle next to the title to the right until only the title and the double-arrow expansion button can be seen (next to the tray area).
5. Right-click the taskbar, and check Lock the Taskbar again.The folder will now be accessible in a menu-like fashion from the taskbar. Big time saver! If you want to remove it later on, just right-click the taskbar, and uncheck the folder title you want removed under Toolbars.

Note: Also works in Windows 2000, ME, and 98.

Change your Welcome (login) Screen

This tweak will only work if you have the "Use welcome screen" option activated in Control Panel>Users Accounts>Logon and Logoff Options.
1. Make a backup copy of C:\windows\system32\logonui.exe
2. Overwrite the file with your new login screen. (be sure to use the same file name as the old logonui.exe)
3. If you ever want to revert back to the old login screen, just overwrite C:\windows\system32\logonui.exe with your backup.
Enjoy!

Some edits and supplements
Windows System File Protection will not allow to override the file unless you follow these steps:
1. Rename the logonui.exe file in either C:\Windows\system32\dllcache or in C:\Windows\ServicePackFiles\i386 (depends on if and how you installed the servicepack).2. Copy your custom logonui.exe to this folder.3. Boot into safe mode and do exactly the same (rename the original file and copy in your new one) in C:\Windows\system32. System File Protection will pop up two windows. Answer them with "cancel" and "yes".
Note: It is always better to rename the original file and not override it.
Alternatively you can use this method to change the Welcome screen :1. Copy your custom logon file under another name, let's say logonuiA.exe, to C:\Windows\system32.2. Open regedit (Always backup before changing anything in the registry) to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon and change the value for UIHost to logonuiA.exe.

Lock any folder without using any software

1. Suppose you have a folder named abcd in D:\abcd.
2. In the same drive next to the folder create a new notepad file with the exact statementren abcd abcd.{21EC2020-3AEA-1069-A2DD-08002B30309D}
3. Now save this text file as loc.bat
4. Create another notepad file and typeren abcd.{21EC2020-3AEA-1069-A2DD-08002B30309D} abcd
5. Save this as key.bat
6. Now there are two batch files. Double click loc.bat and your folder will change into Control Panel and its contents cannot be viewed .
7. To open the folder double click key.bat and you get back your original folder.
8. For more safety keep the key.bat in another location . Only for unlocking copy paste to the original location and double click..