There are following steps for shared problem solution.
There are following possibilities:
1. Turn off password protected sharing Option:
Open Control Panel > Network and Internet > Network and Sharing Center > Advanced Sharing Setting > choose "Turn off password protected sharing" for all networks.
Note: "Password protected sharing" must be disabled on the target/server PC, as this is looked at even before checking network share permissions.
2. Let Windows manage the HomeGroup:
Open Control Panel > Network and Internet > Network and Sharing Center > Advanced Sharing Setting > HomeGroup Connections > select "Allow Windows to manage homegroup connections (recommended)."
Note: If still having an issue, you can try leaving the Homegroup, then joining it again.
3. Enter valid user and Password credentials:
Many time we entered wrong id and Password also check system is on workgroup or domain for example: If system is not domain, Use username with shared computer name like as "server\administrator"
4. Add the target PC's network credentials to User Credentials Manager:
Step:1- Open Control Panel->User Accounts
Step:2- Click on "Manage your credentials"
Step:3- Click on "Add a Windows credentials"
Step:4- Enter "Your Shared Computer Name", "User Name", "Password"
Step:5- Click on "Ok" button and try it.
Note: If You will want to more information, Please mail me on "info@itsolution4u.in"