Hi,
I use win8.1 & win10 and this is not happening on my machines.
You could try 'right-click' on Pd's icon and select “Run as administrator”(1).
Recommended for “Starter” or “Home” editions of Windows.
(1) If this fixes the issue, you can go to the properties on Pd's icon and check this option to be always use when starting Pd.
Thank you Lucas! I will give this a try asap. best, P