I have a PC where I use mutiboot on one SSD with Windows 10 and Windows 7, and another HDD I can switch to boot on. SSD is off at this point electricaly speaking. Since first official release Insider, I use the HDD to play with Windows 10. I have upgraded several versions, made clean installs without issues... But... When came the build 10525 I did not receive anything from WU. Same for 10532. I looked into information given by /dlv say "retail" and Winver and found my Windows 10 240 has no expiry date. Just mention "Windows User" /xpr same way .. My settings are always set to Fast ring. It's seems to me that my Insider version has been strangely converted to retail channel and stay activated. How that can be happened ?