Not that I have been successful so far but you aren't clicking a fastboot.exe or a twrp.exe installation file. You need to put your TWRP image into the folder where your fastboot files are, open a command prompt window in that folder and then type in the command: fastboot boot twrp.imgTJank you, but anyway am i able to do OTA, or not a chance?
That should boot your phone into TWRP where you are supposed to be able to install the recovery ROM zip that you transferred to the internal memory of your phone. OTA isn't going to work if you're switching from the fastboot ROM.