usb boot

Hey :) I wanted to install linux on SP4, but it doesn't seem to recognise any usb! I tried it with a usb which have a windows image in, but still it doesn't work. A point is that, my TPM and secure boot are disabled but when i try to enable them, they can not be change! Seems that you can't...

Hey guys, My surface is stuck in the Automatic Repair loop. It says the surface is preparing for an automatic repair, then the computer crashes and says it will restart itself, then it will boot back to the automatic repair. I have tried booting from a USB stick (even one from Microsoft)...