Use Fast User Switching

هل عملتها بهذه الطريقة

Log on to the computer as an administrator.

2. Click Start, click Control Panel, and then click User Accounts.

3. Click Change the way users log on or off.

4. If it is not already selected, click to select the Use the Welcome screen check box.

NOTE: The Use Fast User Switching check box is unavailable until you click to select the Use the Welcome screen check box.

5. Click to select the Use Fast User Switching check box, and then click Apply Options. Quit the User Accounts tool.

first of all many thanks for you sir,

and i wanna say that i do all what u say and do all the steps

all what've got when i click the log off button is :-

the switch user appers and the log off

and when i click the switch user nothing happend

and when i click the log off it close all the programes and goes off

i even try to check the regedit to know f it is on or off and i found every thing is oka.....

waitting your replay my dear frend

أخوك فى الله إسلام