How do I create a System Restore point?

Click Start, All Programs, Accessories, System Tools, System Restore
For Classic Start Menu: Click Start, Programs, Accessories, System Tools, System Restore.
Click Create a restore point, and then click Next.
In the Restore point description box, type a name to identify this restore point. System Restore automatically adds to this name the date and time that this Restore Point is created.
To finish creating this restore point, click Create.
You can also launch System Restore window by typing the command below, in the RUN box:

%SystemRoot%\System32\restore\rstrui.exe