I am using MikTeX 2.9 on Windows 10 64-bit with texmaker. When I tried to compile a beamer presentation, I get a dialog window like this enter image description here

I select "Install" and then get the following error:

! LaTeX Error: File `beamerbasemodes.sty' not found.Type X to quit or to proceed,or enter new name. (Default extension: sty)Enter file name:! Emergency stop.

What can I do to solve this problem? Thanks in advance.