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i have a doubt what is difference between logoff and shudown

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closed as not constructive by Mokubai, Diogo, Randolph West, Renan, Canadian Luke Aug 7 '12 at 8:01

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up vote 4 down vote accepted

When you log off, your session is ended, i.e. any programs you were running and your desktop, etc. and you return to the welcome screen. The PC still on, and there are system-level applications and services running.

When you shut down, everything stops running and the PC is powered off.

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Nice explanation Mr. Graeme Donaldson thank you for response – Surya sasidhar Jan 5 '10 at 11:32

Log off will log out of your session, but the computer will remain running. You have the option to log in under another user.

Shutdown will logout and turn the computer off :)

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if my system is single user then there is no concept of logoff am i right? Mr. JT WK – Surya sasidhar Jan 5 '10 at 11:31
no, you are not right. – akira Jan 5 '10 at 11:32
why Mr.Akira. it is my doubt can u explain me thank you for response – Surya sasidhar Jan 5 '10 at 11:36
Because Windows XP is always multi-user, even if you only use one user. – Martin Jan 5 '10 at 11:42
ok Mr.Mrtin thank you for explanation – Surya sasidhar Jan 5 '10 at 11:44

Have you tried it? When you logoff, you logoff the current user and return to the login-screen. When you shutdown, you shutdown the computer wich then will be switched off.

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