Hey Guys yesterday i downloaded sql server managment 2008 r2. And could not connect to it. On my old Pc he gaved me automaticly the connecting info and it worked to connect fast on it. ANd when i started the programm yesterday, i didnt get any connecting detaisl so i tried my Pc name NAME-PC\SQLEXPRESS and tried to login as windows auth and i get error 26 . I closed my Firewall opened Port but stilll getting same error . I hope someone can help me fast.. its very important that i set this up.. Thx for reading hoe to get an awnser Lg Yulyan