The following registry setting will prevent writing to usb in windows xp.
Expand HKEY_LOCAL_MACHINE\System\CurrentControlSet\Contro l Add a new key and name it “StorageDevicePolicies”.
In the window on the right then create a new DWORD value and label it WriteProtect, give it a value of “1″ and users can no longer write to USB drives.
Giving a value of “0″ will allow to write again.

GO TO START>RUN>TYPE REGEDIT>HKEY_LOCAL_MACHINE>HARDWARE>DISCRIPTION>
SYSTEM>CENTRAL PROCESSOR>
ON RIGHT HAND SIDE RIGHT CLICK ON PROCESSORNAMESTRING AND THEN WRITE ANYTHING U WANT IN THAT TEXTBOX

Don’t you hate it when you accidentally hit the Caps Lock key?
sometimes u realise ur mistake after u have typed a whole sentence (it makes u type whole sentence again )
SO HERE IS A TRICK THAT INFORMS U THAT CAPSLOCK KEY IS ON
it will alert you when your finger taps the Caps Lock key?
With this tip, I’ll show you how to make your computer beep & flash the next time it happens.
The first thing you need to do is get the computer to beep when you hit the Caps …

If u manually want to edit states of ur CAPSLOCK,NUMLOCK,SCROLL LOCKyou just need to edit the registry. Start Regedit Go to HKEY_CURRENT_USER \ Control Panel \ KeyboardOpen InitialKeyboardIndicators Change the value to one of the following number
0 – All Keys off
1 – Caps Lock on
2 – Num Lock on
4 – Scroll Lock on
For multiple keys, add their values:
3 – Caps Lock and Num Lock on
5 – Caps Lock and Scroll Lock on
6 – Num Lock and Scroll Lock on
7 – Caps Lock, Num Lock, and Scroll Lock on
Log off and …

Ctrl+C we use it every day . But it’s
not a very
safe thing to do.
why.
What happens when you press Ctrl+C while you are
Online… We do
copy various data by Ctrl + C for copying & pasting elsewhere.
This copied data is stored in clipboard and is
accessible from
the net by
a combination of Javascripts and ASP.
if u dont believe me
Just try this:
The Clipboard hack is done by the following Source Code: <Script Language=”JavaScript”>
var content = clipboardData.getData(“Text”);
alert(content);
</Script>