To navigate to the section to delete the W-2 information:
1.) Federal Taxes
2.) Wages and Income
3.) I'll Choose What I Work On
4.) Wages and Salaries
Click through the screens, if necessary, until you reach Here's Your W-2 Info
If there are any entries that do not belong, you can delete the information from TurboTax in this location.
In the same Wages and Income section, you will be able to enter your 1099. Each category has a description of which 1099 is included (there are many, such as 1099-R, 1099-MISC, 1099-G, etc). All you have to do is find the matching form name to the one you have received in the mail and then enter the information into TurboTax.