I suspected this release have a trojan. After 7 days, one folder just disappeared from his place, looking like being deleted. Its possible the NTFS fail this way too, but i use computers from many and i know what im doing and was first time when i saw somthing like this. Now im 90% sure is not a trojan there. For ppl. having problem with Firewall not working, start the service.... When i installed, i start still being in win 10, double click the setup from mounted iso - the process was restarting and and install was a breeze. Its a good optimized OS. If you dont want Windows Updates, the process is set on Automatic so go there first and stop it.