There are two methods you can use to save a baseline. The easiest is to click the drop-down arrow next to Track on the Project Guide and choose Save a baseline plan to compare with later versions.

 

 

Then, you can click Save Baseline in the Tracking task pane. This saves a baseline but does not allow you to set any options.

 

 

Or, you can click the Tools menu, choose Tracking, and click Save Baseline.

 

 

 

This command lets you set baseline options.

 

 

You can see from the dialog above that Project lets you save a baseline for the entire project or for selected tasks only. You can also use the drop-down menu to save up to 11 baselines.

 

 

Once your options are set, click OK to save the baseline. Nothing will appear to happen, but Project has taken a snapshot of your project.