2. Click on Change PC Settings.  Then click on Personalize in the left pane. 3. In the right pane, click on Lock screen and then Browse to find your desired image. When you find the image you want, highlight the file by clicking on it, and then click on Choose Picture in the lower right-hand corner.
RenÃ© Descartes, (born March 31, 1596, La Haye, Touraine, Franceâdied February 11, 1650, Stockholm, Sweden), French mathematician, scientist, and philosopher.
Descartes used a top-down approach. Bacon used a bottoms-up approach. Bacon used more of an eye-witness method, like the cases he prepared in court as a lawyer. Descartes decided to sometimes find things that could absolutely be proven and sometimes find some certain and evident reasons.