مشكله sql

[tome4life2]

لما بفتح sql بكتب id sa و البسورد بس مش بيتفتح بيجبلي information supplementaires A network-related or instance-speciflc error occurred while establishing a connection to sql server the server was not found or was accessible. verify that the instance name is correct and that sql server is configured to allow remote connections (provider named pipes provide error 40-could not open a connection to sql selver) (microsoft sql server erreur 53 ارجو الرد