Windows 8 Sync and privacy
One very useful Windows 8 feature is its ability to synchronise your settings with other PCs and devices. So if you’ve set up your new Windows Phone device with your contacts, email details and so on, then use the same Live account on Windows 8 and it’ll import them for you: very convenient.
Of course that may not always be a good idea. If several people use a device then you may not want your website passwords to be synced, for instance. In which case you’ll want to hold down the Windows key and press I, then click Change PC Settings > Sync Your Settings and disable anything you’d rather not share.