You may try the steps given below and check if that helps you to accomplish what you want to.
a)Open
the presentation you want to make it appear as a Screensaver.
b)Go
to File menu > Save As > Browse through the window to an Empty folder, or simply create one.
c)Select
Device Independent Bitmap from the Save as type drop-down box. 4
d)Type
the name of the new document in the field represented by File Name, and click on the Save button.
e)Now
right-click on the Desktop, and select Properties.
f)Go
to Screensaver tab, and select My Pictures Slideshow from the drop-down box, at the left of 'Settings' button.
g)Click
on the Settings button, and a window will appear.
h)Change
the source of the screensavers, by clicking on theBrowse button, and selecting the previously created folder.
i)Change
other settings, if you want, and click on OK.
j)Leave
the computer inactive, so a brand-new Screensaver version of your Powerpoint presentation appears
If that does not help you may use any of the converter tools available on the u=internet to do the same.
Note: Using Third Party Software, including hardware drivers can cause serious problems
that may prevent your computer from booting properly. Microsoft cannot guarantee that any problems resulting from the use of Third Party Software can be solved. Using Third Party Software is at your own risk.
