Windows 10 access network share always prompts for incorrect user name or password resolution

Today colleagues share some files on Windows10, other colleagues who use Windows 7 can work normally, but I use the Windows 10 operating system, and others enter the same user name and password, but always tell me: the user name or password is incorrect.

Tried a lot of Baidu before the method, the results are not good use. For example, using the Group Policy manager, go to modify local policies, some settings in security options, what network security: LAN Manager authentication level. or open a guest user or something, it's useless.

Finally, the almighty Google told me the solution, although did not understand why.

The solution is to prefix the username with the hostname. For example, the shared machine name is: WILLIAM, the name of the shared account is Ted, so the user name will be entered: william\ted

This makes it possible to use Network file sharing under Windows 10 normally.

Windows 10 access network share always prompts for incorrect user name or password resolution