Bitcoin employs peer-to-peer engineering to operate without central authority or banks; handling transactions along with the issuing of bitcoins is completed collectively via the network.在爱思助手中选择虚拟定位模式，包括全备份模式和精确定位模式。如果仍然无法选择正确的定位模式，可以尝试更新爱思助手或者重新安装后再次尝试修改虚拟定位。Especially, tough drive