Windows 10: i saved a document on powerpoint on autosave as 'CW1 dissertation poster' and now i cant...

Auto recovery feature in powerpoint is not available/ when saving a document I thought it will saved directly /when i exited off the file earlier i had no warning telling me to save it.

:)

 

Autosave documents in Word, Excel, Powerpoint

My version (Office 365 Proplus latest) is offering Autosave only for documents on Onedrive, and there you have option to save versions.





And check save options..




But if Office is acting like this for you, you should send feedback to MS immediately. It's not what I would want to do from my favorite Office suite.


Good practice would be, to first make a copy of document, and then start to edit it... but we all do like you described…
Edit: sorry, another edit. There are additional saving options under Advanced. Maybe check "Always save backup" and disable saving in background:

 

Autosave documents in Word, Excel, Powerpoint

But why should I have to do any one of these work arounds? I can see the (minimal) advantage of having the autosave, but why give the option to switch it on or off only for the document being worked on? There should be a master switch as well.

Word, as possibly every other program around, prompts you to save your document before closing it, Life's not so short that we need to save ourselves a couple of mouse clicks!

 

Autosave documents in Word, Excel, Powerpoint

There is now a "feature" which has lost me documents (or would have had I not had backups).
As many people do, I sometimes load an old document to act as a template, making suitable amendments and saving it under a new name. The problem is that unless I remember to immediately save this under a new name, this new feature can autosave the new version over the original version. One has to save it under a new name before doing anything else.
I know I can switch it off for each document but I want it to be off as a default.My research shows that so do many others!
I did find a registry hack but I couldn't find the key words referred to.