With the PowerPoint presentation open, you can save by doing one of the following:

1. Save the existing presentation (Note: if it has already been saved previously you ‘overwrite’ the file with changes made). Either press Ctrl + S or click the Save button at the top left of the Quick Access Toolbar.
   

OR

2. Save as a new document or a different filetype (e.g. a template or PDF) using File > Save As.

Select File Then Save As



This will then bring up these options to choose where to save, what the name of the file should be and what filetype you need to save it as. Double click This PC to browse a location.

Note: Alternatively you can also use the two fields top right to enter the File name and Type of file and choose a location to save it by clicking the location field above them which will bring up a Save As browser window. In the example below the location field says 'OneDrive - Personal'.



In the browser window that appears decide on the file name, the filetype (the dropdown menu gives a large list of options) and the location to save it.

Note: If you are saving as a different filetype choose the filetype before the location as Word can divert to a different default folder location for some filetypes. If you want to stop this from happening see here: Alter default save locations

Autosave

If you have Microsoft Office 365 you'll see an Autosave toggle found at the top left of the screen. This is for when your files are stored on OneDrive or SharePoint. Autosave automatically saves your edits every few seconds, so you don't need to manually save.

If you're using Word on your mobile or the free version Word Online then your edits automatically save too, there just isn't a toggle to turn autosaving off.

'Autosave isn't working'

Take a look at this article: Autosave not working

Default save locations

You can change the folder PowerPoint default saves to. This will be the first folder that appears in the Save As browsing window which you might want to change somewhere else such as your desktop. To change the default save location go to File top left, then on the next screen select Options (you might need to click More to see Options):

In the PowerPoint Options select Save from the left menu:

With the Save Options you'll see two fields for default locations, one for presentations and one for templates, copy in the folder path you want and click OK to change it.