Preview Product key: 6P99N-YF42M-TPGBG-9VMJP-YKHCF
1. Windows 10 Insider Preview (x64) - Build 10074:
2. Windows 10 Insider Preview (x86) - Build 10074:
Download it, install and test the build and check the new features report bugs to Microsoft and get rewarded $$$.
Become a security tester use this opportunity as a security test use case to learn and explore and execute, till that time happy hunting oops... means happy testing ;)