How do I grant myself admin access to a local SQL Server instance?

Question

I installed SQL Server 2008 R2 to my local machine. But, I can\'t create a new database because of rights (or lack of).

\"CREATE DATABASE PERMISSION D

Answer 1

Its actually enough to add -m to startup parameters on Sql Server Configuration Manager, restart service, go to ssms an add checkbox sysadmin on your account, then remove -m restart again and use as usual.

Database Engine Service Startup Options

-m Starts an instance of SQL Server in single-user mode.