Last logged in username in Windows XP

The default last logged in username can be found in"DefaultUserName"HKLM\Software\Microsoft\WindowsNT\CurrentVersion\WinLogon

If you want to clear the last logged in user from the registry,
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\System
"DontDisplayLastName" change the value to 1

Outlook 2010 Read Receipt Email Tracking

After sending the email, sometime it becomes a frantic need to know when the recipient will start reading it, Outlook has an intrinsic feature which lets you know immediately when the person starts reading your message. By using Tracking, you can track down the email. This post elaborates how you can enable this feature.

Launch Outlook 2010, and from Home tab, click New E-mail

Navigate to Options tab, and From Tracking pane enable Request a Read Receipt option, now click Send to send it to recipient.