Lenovo care button on N100 07686VG Vista

SOURCE: RESTORING FACTORY CONTENTS.

That is because someone has either removed, formatted or overwritten the partition on which the recovery software was stored. You'll need to find CDs of the software you want, starting with the OS, and install that way.

SOURCE: where can i find lenovo care button on my keybord?

Are you talking about the ThinkVantage button? This is usually the blue button labeled "ThinkVantage" on the upper left of the keyboard. Right after the media or other buttons. On my T61 the upper left has the Esc key, 3 speaker buttons (mute, volume down and volume up) and then the blue rectangular ThinkVantage button.

SOURCE: " Web cam , graphics not detecting"

yeah, go to  http://www-307.ibm.com/pc/support/site.wss/product.do?subcategoryind=0&familyind=437897&brandind=10&doccategoryind=0&modelind=0&doctypeind=9&validate=true&partnumberind=0&sitestyle=lenovo&template=/productpage/landingpages/productPageLandingPage.vm&operatingsystemind=343518&machineind=438304
that is a list of the drivers available, make sure the operating system is set to windows vista and then look through the list for the web cam and general service package download

SOURCE: lenovo care button not working

You will need to download the drivers and software from the lenovo support site for vista

The link below points to the software/drivers for your laptop

Check the back of your laptop for the type number and select accordingly for the drivers.
http://www-307.ibm.com/pc/support/site.wss/product.do?template=/product.do?template=%2Fproductpage%2Flandingpages%2FproductPageLandingPage.vm&sitestyle=lenovo&brandind=10&familyind=370177&machineind=0&modelind=0&partnumberind=0&subcategoryind=0&doctypeind=100&doccategoryind=0&operatingsystemind=49979&validate=true

SOURCE: How do I Restore my Lenovo Y550 back to Defaults.

beside your power button there is a small button that will have a curved arrow on it, your system must be shut down then press and hold down the button wth a curved arrow or it may say NOVO on it press and hold it down for 4-5 seconds while the ssytem is shut down the computer will power on if you press that button then it will look like it is loading windows but it will show on the screen Lenovo Rescue OneKey System then you might see the option fix files or advance if this screen comes up it means that you still have the option to get windows working again if you click advance it will give you an option of Lenovo Password Management, Lenovo Anti Virus and Lenovo Rescue System select lenovo rescue system it will give you the options restore from initial backup, restore from customer backup select restore from initial back up to restore back to factory defaults unleass you created a back up of your own ^_^