hi friends
I am unable to open task manager in my pc....please help

More info please!
What machine
what os
does it just not open when you click on it?
or can you even find the open button.

Walk us through what happens

You might check this key to see if there is an entry Disable Taskmgr or similar...:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System
if there is you have two choices: either delete the entry name Disable Taskmgr, or change its data value to 0 [zero].
If you are running XP Pro you could just tackle it via gpedit.msc.

commented: Gerbil's idea worked for me! Thank you very much! +0
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