I want to reset my u100 back to factory setting

go to the bios and reset it to factory settings

if you look in device manager under network and check if your wireless card has any problems.If you have restored your laptop you may need drivers installing.

Hi
Note that to do a hard reset on your phone means complete LOSS OF YOUR DATA and third party applications returning the phone to its original factory settings.
To do a hard reset,press *2767*3855#

Hi Pamelaventan...

To set you computer back to factory fresh settings you will need to format the hard drive and reinstall the operatins system and the drivers.
You will need to have the CD's that either you made when you got your computer or if your lucky you got the CD's that the factory furnished with the computer at the time you bought it.
1.
Format the hard drive:
You do this by double left clicking on "My Computer",then double left click the main drive (normally C drive).
When the window pops open, you will choose "Format"
Keep in mind that once you format your hard drive you will loose all your files,programs,pictures,etc that you installed since the computer was new. So make your back up on a portable hard drive,thumb drive,etc.
2. Once the formatting of the hard drive is complete you will need to reinstall the operating system along with the drivers.
That will bring your computer back to factory new condition as far as operating is concerned.
Please take time to rate me

sleeping light always on

Mostly it shouldn't, but may be due to low ram memory, it takes longer,,

Try increasing your ram, if it still take all that time

Hello my friend,this is looks like the windows is corrupted and your windows cannot boot ,maybe this is caused by a virus,you can try reinstalling the windows but i don't recommend it if its a virus problem.I recommend you formatting your computer or restore your laptop to factory settings.The last one it depends on laptop some have special restore partitions on the hard drive, usually you press alt+F10,F10,F11 or F12 after powering on the laptop, and it goes into a restore program that wipes your drive and returns the laptop back to the way it was when you first purchased it.
Note all your programs and data will be deleted if you restore the computer.

Do you mean the encryption key? It may have been changed.
If so you can reset the Netgear back to the default settings and setup a new encryption key.
To RESET the router, press the pinhole RESET button at the back of the router for approx. 10 secs until the LEDs flash.
For instrustions on how to secure and configure the Netgear wireless router and the wireless card in the computer/laptop please click on this link :-
http://www.fixya.com/support/r3559128-wireless_router_security
The Netgear configuration URL http://192.168.0.1
Default login = admin
Default PW = password
Should you need further help, please leave me a comment.

Switch off netbook,switch on holding down F3 then follow onscreen instructions.

Easy !

go through the settings on the laptop and try and find restore settings, i am not sure where it may be so i cant help with sorry, cheers