You have done it... not quite right.

You should:

• Run lusrmgr (Win+r, type lusrmgr.msc).
• If you don't have a password for your user you have to add it now (security!) - select your user from Users and add a password ('RMB', 'Password setup...').
• Select Guests group from Groups.
• Add new users to Guests (Enter, Add... button, Localizations... button) from their machines by Network Neighbourhood.

You should consider adjustment of Guests group policies.

You don't need strictly to hide added Guests accounts, but autologon your default user:

• Run netplwiz (Win+r, type netplwiz).
• Select your user from user list.
• Uncheck Users must enter user name and password to use this computer.
• Apply and enter you password - password is not validated here, so you have to enter correct password to autologon successfully.

You have done it... not quite right.

You should:

• Run lusrmgr (Win+r, type lusrmgr.msc).
• If you don't have a password for your user you have to add it now (security!) - select your user from Users and add a password ('RMB', 'Password setup...').
• Select Guests group from Groups.
• Add new users to Guests (Enter, Add... button, Localizations... button) from their machines by Network Neighbourhood.

You should consider adjustment of Guests group policies.

You don't need strictly to hide added Guests accounts, but autologon your default user:

• Run netplwiz (Win+r, type netplwiz).
• Select your user from user list.
• Uncheck Users must enter user name and password to use this computer.
• Apply and enter you password - password is not validated here, so you have to enter correct password to autologon successfully.

And of course you should then:

• Share desired folders with Guests user group.