Shortcut key for Windows Vista / 7

Win + E - My Computer
Win + D - Desktop(click one more time show back your windows)
Win + P - Switch between projector, extend or duplicate
Win + X - Windows Mobility Center
Win + R - Run
Win + U - Ease of Access Center
Win + F - Search
Win + L - Switch User of Computer or Get back Login Page
Win + M - Minimize all Windows or software
Win + + - Magnifier / Zoom in
Win + - - shrink / Zoom out
Win + Tab - Aero Switch Windows
Alt + Tab - Normal Switch Windows
Ctrl + Shift + Esc - Windows Task Manager
Ctrl + Alt + Delete - Windows Security Dialog
Alt + PrintScrn - Print Screen the Current Windows
Alt + F4 - Close Current Windows
F1 - Help
F2 - Rename
When Rename On, Click Tab will switch to next file which to be rename

Normal Function(Notepad / Windows Word)
Ctrl + Z - Back / Undo
Ctrl + C - Copy
Ctrl + V - Paste
Ctrl + X - Cut
Ctrl + R - Forward / Redo
Ctrl + A - Select All
Ctrl + S - Save
Ctrl + P - Print
Ctrl + F - Find
Ctrl + I - Tab
Ctrl + O - Open
Ctrl + N - New
Ctrl + M - Enter
Ctrl + H - Replace