An object-oriented programming language developed by Microsoft that can be used in .NET.
Hi @Habib ur Rehman ,
> I mean I want to use different "PC-name" & "User-Name" on new system. Note that my Sql Login credentials are same in both New & Old PC still it won't let me login.
Agree with Erland. In addition, please make sure that the user account used in connection string is created in SQL server logins under security folder in new PC .
Please share us more detail error message for analysis.
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".