I can not log off!! when i click on the start it does not have log off just shut down

You will need to remove all power. This includes the battery. Then when you start up your system will report it shut down incorrectly. Select to start normally and as soon as the system has settled down properly shut it down again.
This fault is caused by a memory error when unloading on of the systems drivers. The above process will reset the driver(s) so that they load correctly next time you switch on...BUT YOU MUST REMOVE ALL POWER FIRST for it to shut down as it is stuck in that unloading loop.

sounds like a virus!

1. Remove all floppy disks, CDs, and DVDs from your computer, and then restart your computer.Click the Start button , click the arrow next to the Shut Down button , and then click Restart.
2. Do one of the following:
   
   • If your computer has a single operating system installed, press and hold the F8 key as your computer restarts. You need to keep tapping on F8 before the Windows logo appears. If the Windows logo appears, you'll need to try again by waiting until the Windows logon prompt appears, and then shutting down and restarting your computer.
   • If your computer has more than one operating system, use the arrow keys to highlight the operating system you want to start in safe mode, and then press F8.
3. On the Advanced Boot Options screen, use the arrow keys to highlight the safe mode with networking
4. download malwarebytes http://www.majorgeeks.com/mg/getmirror/malwarebytes_anti_malware,1.html#.U2QUMfldU41 it a safe place to download it from
5. install and run

Press and hold the power button.

It should shutdown, or turn off.

Maybe you should pull the plug.

Hi there...
If you use Microsoft Windows based computer, logging off is very easy..
1. Go to Start menu (Its a button saying ' Start ' on it. And it locates Most commonly at lower left of screen) and click it.
On Clicking, it will pop open showing contents of start menu
You may have start menu look like one of these.. (Assuming that you uses Windows OS)


2. Follow either A / B / C option corresponding to your start menu appearance. If Your Start Menu Looks like Option_A, then follow its instructions. So do others

Option _ A
Click On button ' Log Off '


Then Choose " Log Off " button to Log off from system

Option _ B
Click On Small arrow next to Lock Symbol . It will show a menu containing many options including " Log Off".


Then Choose "Log Off" to Log off from system

Option _ C
Click on "Shut Down ...". This will open new window showing many options. On Drop menu (Looks like a text area and it will have a down pointed arrow or triangle) choose "Log Off".

Click on Ok Button will Log you off the system

This behavior may occur if Windows stops responding during a typical operation or during the shutdown process. By default, the computer is configured to automatically restart when Windows stops responding. To view this setting, follow these steps:

1. Click the Start button, right-click My Computer, click Properties, click the Advanced tab, and then click Settings under Start up and Recovery.
2. Under System Failure, view the Automatically restart check box. If the Automatically restart check box is selected, Windows automatically restarts if the computer stops unexpectedly.

If your computer constantly restarts while you are using it, or if you are trying to shut down the computer after it has stopped unexpectedly, click to clear the Automatically restart check box. If you clear this check box, you receive an error message when the computer stops responding. This error message may describe the cause of the problem. You can also review the system log in Event Viewer to view the critical stop error that occurs when the computer restarts. For additional information, click the following article number to view the article in the Microsoft Knowledge Base: 308427 (http://support.microsoft.com/kb/308427/ ) HOW TO: View and manage event logs in Event Viewer in Windows XP To configure the way that Windows responds when the computer stops unexpectedly, follow these steps.

Note: You must be logged on as an administrator or a member of the Administrators group to complete this procedure. If your computer is connected to a network, network policy settings may prevent you from completing this procedure.

1. Log on to the host computer as either an administrator or the owner.
2. Click Start, and then click Control Panel.
3. Under Pick a category, click Performance and Maintenance.
4. Under the or pick a Control Panel icon section, click System.
5. Click the Advanced tab, and then click Settings under Startup and Recovery.
6. Click to select any one of the following check boxes under System Failure:
   • Write an event to the system log
   • Send an administrative alert
   • Automatically restart
   At last if nothing works then clear the "Star up"
7. C:\Documents and Settings\All Users\Start Menu\Programs\Start up
   If you are not satisfied then If you are using XP then repair it.

thanks

if vista go to start menu and in the corner is an arrow move mouse over will show you (log off, restart, shut down, switch user,) it is next to the main shut down button in start menu, if XP should be in the same place the start menu should have own button. and or right click it, and it will bring up your start menu properties go in and adjust as you see fit. the fixist good luck and have a nice day

Review your user accounts, you may need to clean the registry. I reccomend CCleaner it;s open source and its pretty solid and best of all it's free

Disable all startup items. Click on Start> Run> Type msconfig then press enter. Click on the Start Up Tab the click on Disable All. Click close and restart your computer.

Your system should be starting up faster compared before.

Is it possible that you have changed the settings of what buttons do what on your system? E.g. you could have changed the power button to "switch user" instead of "shut down", to check this (in XP) go to "Power Options" (in Control Panel" and then click on the "Advanced tab" at the top, then select "Shut down" from the drop down menu at the bottom of the window.

If this is already set to shut down then maybe you could do a system restore in case another setting has been changed, restore it to before the PC started doing this.

Alternatively try actually choosing "Turn off Computer" from the Log On screen (press Ctrl + L to get to this screen, or choose switch user/log off). If you are using Vista I beleive that there is a shut-down option from the Log In Page there (which again you can access by pressing Ctrl + L on the keyboard.

Hope this helps!