In Windows 8.1 and Windows 8.1 Update, Microsoft has evolved many PC Settings and made them independent of the classic Control Panel which you access from Desktop mode. In the initial release of Windows 8, in order to rename your tablet, you had to use the Advanced System Properties applet. It was an old applet and not touch friendly. Thankfully, Windows 8.1 provides a new useful otpion to rename your tablet.
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