Win10 can't access the solution of Win7 shared resources

A netizen said that he had a problem with the Win10 9926 system installed: he could not access the shared resources of the Win7 system, but he could switch back to the Win8.1 system. How to solve this problem?

Fault analysis: This dual system user has tried many times, Win10 9926 can not access the shared resources of Win7 system, Win8.1 can access. And Win10 9926 can also access XP system, it seems that only Win7 system can not.
Workaround
By enabling the administrator account, please refer to the tutorial "Enable the Skills for Setting up the Win10 System Administrator Account". If not, you can try to install the new version when Win10 next update.