Couldn’t do it, could you?

Here is how to fix it.

1. Start > Run > gpedit.msc  Enter
2. Expand Computer Configuration >Windows Setting > Security Setting > Local Policy > user rights assignments >
a) Double click Access this computer from the network and check that EVERYONE is added to the list.
b) Double click Deny access to this computer from the network and remove the guest and everyone  from the added list
3. Start > Run > and type gpupdate and press Enter