(First of all, sorry for my bad english, im not a native speaker)Hello, i have a very big problem in here, in april, i downloaded windows 10 preview (i think it was Beta) in my laptop (Dell Inspiron 15R) in the oficial page of windows, so it was everything okay until in 31 October a warning appeared: If you dont download an official copy of windows you computer will expire September 15, you can download a version for free in our store. Ok, i went to the store but it didnt work! the store NEVER worked, so in September 15 my computer just stopped working! when i turn it on it appears: "Your PC/device needs to be repaired. A component of the operating system has expired. File: \WINDOWS\system32\winload.exe Error code: 0x0000605 You'll need to use recovery tools. If you don't have any installation media contact your PC administrator or manufacturer. Press Enter to try again. Press F8 for startup settings." So, i dont know how to manage this! i tried with an usb with windows 10 preview (dowloaded equal form the official page) but it didnt worked, what can i do? how can i get back my windows 8? how can i downgrade if i cant acces my computer? it was the original one, i just want that, it appears that windows is going to make me pay for my "free" copy, anyway thanks for all people supporting.