Hi Ian,
Just to be sure you have the latest Insider can you type winver in search and hit enter, post back the build, or snip so it looks like this, don't include your email.
I previous version on Insider they did have a hanging problem but was supposed to be fixed, your problem might be new so can you reproduce it using the recorder at the Feed Back Hub (win key + F) then post a link here so Eddie from MSFT can see and maybe help you.
Here is the blog about the earlier XBox problem Announcing Windows 10 Insider Preview Build 21332 | Windows Insider Blog
Are all your drivers up to date, device manager no longer searches the internet for drivers so go to your manufacturer's web site for your hardware drivers and install the latest if you haven't already. Also check you have the latest bios for your computer.
If you have just installed Insider you have ten days to go back to the previous operating system.
Your English is fine by the way.