Win8 Microsoft ID login CPU occupied high hard disk lights have been flashing

Network installed dual system Win8 and Win7, install dual system tutorial please see (nt6 hard disk installation Win8/Win7 dual system) (U disk installation Win8/Win7 dual system ), today's magical discovery that Windows 8 has not taken the initiative to run any program, the CPU has been occupying 20% ​​~ 30%, I feel very surprised, this is definitely a problem! 4 core CPU will not let Win8 spike! After Weibo verified, some friends also reflected this problem. I think it is caused by Microsoft account login and local account difference. Maybe after using Microsoft ID to log in, and connecting to the cloud, synchronization and other issues are high CPU usage, so create a local account, the problem solved! But this is not the core! Press win+I and then press Enter to enter the setting interface. Select the family group on the left, then choose to leave, and the problem of exiting the family group is solved.