My computer is running Win 7 Pro and I am using MS Powerpoint 2013. Today I find that after directly creating a graphic in Powerpoint (no linked data), when I try to modify the data (in chart or in Excel) or select data the program does not respond - meaning the little spreadsheet does not pop up where I can modify / select the data. No error message comes up either. The slide presentation is one that I created today and has not been emailed though it has been copied on a flash drive. The drive connects through USB 3 and is otherwise fine (no errors, no evidence of corruption); the problem occurs whether the presentation is opened from the computer SSD drive or from the USB drive. I have tried shutting the program down and restarting, starting a new graph, and doing both quick and long repairs, but without resolving the problem. I have used powerpoint in this configuration for years with no issues in modifying data associated with a chart.
Checking posts on Microsoft forum I find some suggestions but they either do not apply (no linked data being used for the chart) or they do not solve the problem.
Thanks to all who suggest solutions!