[DNL1960]

At random times during video playback of x265 files, KODI will switch to the Win 7 desktop and the video keeps playing.

[mToeJam]

Hello mate.

Please, provide a Debug Log.
It seems, your problem is related to mine
Do you have multimonitor configuration?

http://forum.kodi.tv/showthread.php?tid=266556

[DNL1960]

Single monitor

[PatK]

Something within your system is stealing the focus from Kodi, check your power options (screen blanker) or anything that would run in the background. Is Kodi in minimize form on the desktop bar?