How To Set or Change File Associations in Windows 7 & Vista!
How to set the path and environment variables in Windows
Show or hide file name extensions
Windows Explorer, Organize, Folder and search options
Windows change access permissions from the command line
How to change MAC address on Windows 7
Working with the Windows Registry (Windows 7, Vista, XP)
 
Installing Ubuntu virtually on Windows
Installing VirtualBox and extension packs
Useful tips
Enable more screen resolutions for Linux under Virtualbox:

• How to Setup VirtualBox Guest Additions and Network (skip to Guest Additions)
• Guest Additions for Linux