How to start Win10 system group policy editor tool

Some users have encountered such a problem: running the game on Win8.1 into full screen state, returning to the desktop in a few minutes. Open the document or chat software, the mouse and keyboard will not move, and will switch out after a few minutes, you must click again. How to solve this problem?
Workaround
Some software that is not compatible with Windows 8.1 runs in the background or pops up the pop-up window. For example, the "CCTV Audio & Video" software installed on my computer will update the data in the background, pop-up pop-ups, and cause back to the desktop when playing full-screen games.
Generally, these processes are closed by the task manager. The best way is to uninstall these softwares that are not compatible. If you are not sure which software is causing the problem, you can check it out one by one.
Having encountered this problem, especially when playing games, the level of trouble is definitely imaginable. Because Win8.1's share is still relatively low, some software is not good enough for Win8.1 compatibility. I hope these software can optimize support for Win8.1 as soon as possible.