If you are running Windows 10 (or 8 for that matter) download the update file from Ricoh. Run it, it will complain it can't find a previous version. Click "ok" or whatever - not cancel - then click "next", "next" and it will install anyway. Just don't click "cancel" or the red "x" on any of the windows, unless of course you want to cancel. I think it's a newer version than what is on the K-1 disc.
Good luck. There have been a few reports of DCU not working on Window 10 - splash screen then nothing as I recall.
Some people use DCU to process the Pixel Shift RAW files saving them as TIFs and then using some other package to work on the TIFs. Perhaps in the future other packages will process Pixel Shift as well as DCU does.
Or follow the steps in this thread (skip to the last few pages):
https://www.pentaxforums.com/forums/55-photography-articles/36984-how-instal...installed.html
Basically take a USB or Flash drive attach it and name it S-SW162 (this should work or see the above thread) and then run the update.
Last edited by Not a Number; 02-06-2017 at 08:13 AM.