Search for 'Adobe Reader' in your Google search bar.

Click on the Adobe link pictured below.

This screen will load:

In the optional offers section, untick the tick boxes which say:

Yes, Install Google Chrome
Make Chrome my default browser
Yes, Install Google toolbar for Internet Explorer

Click > 'Install now'.

A pop up box will appear at the bottom of your screen, pictured below:

Click > 'Run'.

Adobe will begin to dowload.

Once finished, click > 'Finished'.

Installation complete!