How to use Missing Pause/Break key on Dell or almost all laptops

1) click the START, then type REGEDIT into the search box. This will start the registry editor.

2) Explore the Registry, expanding each element
HKEY_LOCAL_MACHINE
-SYSTEM
-Current Control Set
- Control
- Keyboard Layout
Click on the Scancode Map, and EDIT the key values to match that shown below.
i.e. to have values of : 00,00,00,00,00,00,00,00,02,00,00,00,46,e0,44,00,00,00,00,00
Once Done you will need to re-boot your laptop, but after that you can use as the pause/Break Key.

(Option)
If you want you can copy/Paste the text below into a *.txt file.
Save the file onto your desktop and rename as New_Reg_Key.reg because of the *.reg extension you can then double_click the file to add the new registry key.
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Keyboard Layout]
"Scancode Map"=hex:00,00,00,00,00,00,00,00,02,00,00,00,46,e0,44,00,00,00,00,00

How to disable USB storage usage in Ubuntu

Hi,
To stop USB storage in ubuntu, go ahead with these commands in terminal with sudo rights..

1) sudo gedit /etc/modprobe.d/blacklist.conf

Add in last line

2)blacklist usb_storage

and restart. Its done. Cheers...