(1: How to judge whether the system is rogue 2: how to operate in the command prompt of XP system if you want to obtain the MAC of ip192.168.1.2 in the LAN? What is the line sequence of mbr3:568a and 568B 4: what is the command to convert FAT32 to NTFS partitions 5: what is the IP address assigned by DHCP to be manually updated 6: by default, there is no way to set user permissions for XP File sharing. There is only one option: whether to allow network users to change my file options, but what should be done if different user permissions need to be set for this shared folder? 7: What is the basic network transmission protocol used by instant messaging software such as QQ? 8: What should I pay attention to before reinstalling the system and formatting the C disk? (prerequisite for system operation))