Time Out says
Tokyo IT Services offers English-language support to computer users in Tokyo, plus wireless network installation, laptop rental from ¥500 a day, and a computer repair service. For Macs and PCs.
Shinwa Bldg 5F, 2-6-8 Hamamatsucho, Minato-ku, Tokyo
|Transport:||Hamamatsucho station (Yamanote line), south exit.|